Is a blue diamond a real diamond?

Yes, a blue diamond is a real diamond. Contrary to popular belief, diamonds come in an array of colors aside from clear. Blue diamonds are neither color-treated nor enhanced to deliver the icy shade, which can range from a seafoam green to a royal blue.

Are there blue-green diamonds?

Yes, there are blue-green diamonds. However, natural ones are very rare, so most are man-made. The Dresden Green is the most famous example of a genuine blue-green diamond gemstone. You can find a wide selection of diamond gemstone jewelry on 1stDibs.

What is a blue diamond worth?

A light blue 0.5 carat diamond is worth roughly $26,280 on average. A deep blue 0.25 diamond, costs $75,000 on average. Blue diamonds are the rarest color of diamond, only found in three areas of the world: Australia, South Africa, and India. The deeper the blue diamonds are even more rare and therefore more expensive.

Are Blue Nile diamonds real diamonds?

Yes, Blue Nile diamonds are real diamonds. The luxury jewelry maker uses natural diamonds ethically sourced from mines for many of its pieces. In addition, Blue Nile offers an assortment of lab-created diamond rings, earrings, necklaces and bracelets. Lab-created diamonds are still real, but they are human-made rather than mined. On 1stDibs, find an assortment of Blue Nile diamond jewelry.

Are blue diamonds worth anything?

Yes, blue diamonds may be worth something. How much a particular gemstone is worth depends on its color, cut, clarity and size, measured in carats. Generally, naturally occurring blue diamonds are worth more than human-made synthetic ones. A certified appraiser or knowledgeable jeweler can inspect your loose gemstone or diamond jewelry and provide you with its estimated value. Explore a diverse assortment of blue diamond jewelry on 1stDibs.

Are Blue Nile diamonds legit?

Yes, Blue Nile diamonds are legit. The jewelry maker offers both natural diamonds sourced from mines and lab-created diamonds produced via controlled scientific techniques. Both types of diamonds are legitimate or genuine gemstones. Find a range of Blue Nile diamond jewelry on 1stDibs.

How can I tell if my blue diamond is real?

To tell if your blue diamond is real, look for a maker's mark on your piece. By researching the manufacturer using trusted online resources, you can find out if the jewelry maker tends to use authentic gemstones or rhinestones in its pieces. If you can't find a mark or are still uncertain, consult a certified appraiser or knowledgeable jeweler. Performing home tests for diamond authenticity can damage your jewelry, so getting a professional opinion is often the best way to protect your piece. Find a range of blue diamond jewelry on 1stDibs.

How much is a blue diamond ring worth?

A blue diamond ring worth depends on the type of blue diamond. Ideally, a blue diamond’s cost is based on its 4Cs (cut, color, clarity, and carat), with the intensity of the color being the dominant factor. A blue diamond ring price ranges between $6,800 to $11,200. On 1stDibs, you can find a range of exquisite antique and vintage blue diamond rings.

Does Blue Nile sell real diamonds?

Yes, Blue Nile sells real diamonds. Many of the jewelry maker's pieces feature natural diamonds. Others are set with lab-created diamonds, which are real but are the result of processes performed in laboratories. On 1stDibs, explore a collection of Blue Nile diamond jewelry from some of the world's top sellers.

How much is a natural blue diamond worth?

The price of a natural blue diamond is determined first by the color and then its clarity. Depending on these factors and the size chosen, there is a huge variation in price. You will find the blue diamond price range from under $2,000 to over $10,000 on 1stDibs.

How much is a 1-carat blue diamond worth?

How much a 1-carat blue diamond is worth depends on its cut, clarity and color. Human-made synthetic blue diamonds of that size are often worth less than $10,000, while natural examples sourced through mining are generally valued at much higher prices. If a gemstone is set in a piece of jewelry, it may have additional value due to the precious metals, the maker of the piece, its age and other factors. Because so many variables can impact the potential value of a blue diamond, experts generally recommend having a certified appraiser or experienced jeweler assist with the valuation process. On 1stDibs, explore a diverse assortment of blue diamond jewelry.

Deep Blue Diamond

Vr Jewels Usa Inc

White Gold Blue Stone Ring

14k Gold Evil Eye Ring

8 Carat Gia Blue Sapphire

10 Carat Yellow Sapphire

Two Stone Pear Diamond Ring

Thailand Sapphire

Engagement Rings Belgium

Category

Vintage 1950s French Romantic Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire and Diamond Cluster Ring in 18K White Gold, circa 1950

$3,839

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Block Pendant Necklace

Located in New York, NY

pendant is a true statement piece. A center cluster of deep blue, color treated, round cut diamonds

Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Blue Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Treated Blue Diamond Block Pendant Necklace

$464 / item

18K White Gold 1.96ct Squared Blue Sapphire 0.16ct Diamond Invisible Band Ring

Located in เกาะสมุย, TH

interplay of deep blue sapphires and icy white diamonds. Arranged in two seamless rows, the squared

Category

20th Century Thai Band Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

18K White Gold 1.96ct Squared Blue Sapphire 0.16ct Diamond Invisible Band Ring

$1,350 Sale Price

50% Off

Diamond Blue Sapphire Vintage Inspired Art Deco Style White Gold Ring

By Unbranded

Located in Oakton, VA

contrast between the deep blue sapphire and the radiant diamonds creates a mesmerizing effect, making this

Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Diamond Blue Sapphire Vintage Inspired Art Deco Style White Gold Ring

$5,500

GIA Certified Oval 1.85 Carat Blue Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

Deep blue sapphire and diamond engagement ring. GIA certified oval 1.85 carat blue sapphire center

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified Oval 1.85 Carat Blue Sapphire Diamond Platinum Engagement Ring

$5,995

Blue Sapphire and Diamond Vintage Style Ring in Solid 9K Yellow Gold

Located in Bangkok, TH

Experience timeless elegance with our Natural Blue Sapphire and Diamond Vintage Style Ring

Category

21st Century and Contemporary Thai Edwardian Solitaire Rings

Materials

Diamond, Blue Sapphire, 9k Gold, Yellow Gold

Blue Sapphire and Diamond Vintage Style Ring in Solid 9K Yellow Gold

$1,000

Blue Sapphire Fancy Shape White Diamond 18K White Gold Drop Statement Earrings

By Galt Bro. Jewelers

Located in Oakton, VA

A stunning pair of earrings, featuring an intricate design with deep blue sapphires and sparkling

Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire Fancy Shape White Diamond 18K White Gold Drop Statement Earrings

$32,000

Earrings 18kt Gold Blue Sapphires 3.08 cts Marquise Diamonds 0.53 cts Studs

Located in Miami, FL

between the deep blue sapphires and dazzling diamonds creates a captivating and elegant look for these

Category

2010s American Contemporary Stud Earrings

Materials

Diamond, Blue Sapphire, Gold

Earrings 18kt Gold Blue Sapphires 3.08 cts Marquise Diamonds 0.53 cts Studs

$5,920 Sale Price

20% Off

【 Crown Radiance】Blue Orbit South Sea Pearl Diamond Sapphire Cocktail Ring

Located in New York, NY

deep blue sapphires, creating a stunning interplay of light and color. The dynamic, streamlined design

Category

21st Century and Contemporary Japanese Engagement Rings

Materials

Diamond, South Sea Pearl, Blue Sapphire, White Gold

【 Crown Radiance】Blue Orbit South Sea Pearl Diamond Sapphire Cocktail Ring

$11,500

.925 Sterling Silver 1/4 Carat Rose Cut Treated Blue Diamond Square Stud Earring

Located in New York, NY

are set in rich sterling silver. Featuring an elegant adornment of deep blue round cut diamonds, the

Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

.925 Sterling Silver 1/4 Carat Rose Cut Treated Blue Diamond Square Stud Earring

$164 / item

Diamond Blue Enamel Natural Pearls Gold Ring, 1930

Located in Herzelia, Tel Aviv

soft luster contrasts beautifully with the deep blue enamel and sparkling diamonds. Diamonds

Category

Vintage 1930s More Rings

Materials

Diamond, Natural Pearl, Gold, Enamel

Diamond Blue Enamel Natural Pearls Gold Ring, 1930

$12,000

Elegant 14k Solid Yellow Gold Marquise Blue Sapphire Diamond Tennis Bracelet

By VR Jewels

Located in New York, NY

, featuring alternating marquise-cut blue sapphires and sparkling round-cut diamonds. Each deep-blue sapphire

Category

21st Century and Contemporary American Art Deco Tennis Bracelets

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, Yellow Gold

Elegant 14k Solid Yellow Gold Marquise Blue Sapphire Diamond Tennis Bracelet

$2,160 Sale Price / item

20% Off

Diamond Blue Sapphire Vintage Inspired Art Deco Style Stud White Gold Earrings

By Unbranded

Located in Oakton, VA

diamonds and deep blue sapphires, their symmetrical design captures timeless elegance and sophistication

Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Diamond Blue Sapphire Vintage Inspired Art Deco Style Stud White Gold Earrings

$4,500

Sunita Nahata London Blue Topaz 5.36ct. Drop Earring in 18KRG With Diamond.

By Sunita Nahata

Located in Hong Kong, HK

Bold Blue Topaz! Light and easy to wear these earrings showcase deep blue topaz accented with

Category

21st Century and Contemporary Thai Contemporary Drop Earrings

Materials

Diamond, White Diamond, Blue Topaz, Gold, 18k Gold, Rose Gold

Sunita Nahata London Blue Topaz 5.36ct. Drop Earring in 18KRG With Diamond.

$2,740

Blue Sapphire White Diamond Pave Cluster Set 14K White Gold Statement Ring

By Galt Bro. Jewelers

Located in Oakton, VA

This exquisite ring is crafted in 14k white gold. The band features a stunning array of deep blue

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Sapphire White Diamond Pave Cluster Set 14K White Gold Statement Ring

$6,000

2.30 Carat Blue Oval Sapphire Diamond Halo Yellow Gold Dangle Earrings

Located in Stamford, CT

1970's deep blue oval shaped 2.30 carat sapphire diamond hinged four section dangle earrings. Each

Category

Late 20th Century Dangle Earrings

Materials

Diamond, Sapphire, Blue Sapphire, Yellow Gold, Gold, 14k Gold

2.30 Carat Blue Oval Sapphire Diamond Halo Yellow Gold Dangle Earrings

$3,995

Opal Blue Sapphire Diamond Art Deco Style Openwork Pin White Gold Brooch

By Unbranded

Located in Oakton, VA

of colors shifting between vibrant blues and fiery oranges. Framed by deep blue sapphires and

Category

21st Century and Contemporary Art Deco Brooches

Materials

Diamond, Opal, Blue Sapphire, 18k Gold, White Gold

Opal Blue Sapphire Diamond Art Deco Style Openwork Pin White Gold Brooch

$5,900

12.68 Carat Blue Sapphire and Diamond Dangle Earrings in Victorian Style

Located in Jaipur, IN

articulate art-deco style deep blue sapphire and diamond earring is strikingly gorgeous. The sensational

Category

2010s Indian Victorian Dangle Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold, Silver

12.68 Carat Blue Sapphire and Diamond Dangle Earrings in Victorian Style

$4,390

Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct

Located in SYDNEY, NSW

A Set of Assorted Treated Deep Blue Round Brilliant Cut Diamonds, approximately 0.02ct each, 50 in

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Gold

Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct

$1,100 Sale Price

31% Off

Rossella Ugolini 18k Gold Blue Sapphire White Diamond Alligator Man Pin

By Rossella Ugolini

Located in Rome, IT

, shirt or hat. The crocodile is depicted in motion, with deep blue sapphires and white diamonds eyes

Category

2010s Italian Artist Brooches

Materials

Blue Sapphire, Sapphire, White Diamond, White Gold, Gold, 18k Gold, Yell...

Rossella Ugolini 18k Gold Blue Sapphire White Diamond Alligator Man Pin

$2,285

Blue Sapphire Precision Square Cut Diamonds 14K White Gold Statement Band Ring

By Galt Bro. Jewelers

Located in Oakton, VA

Crafted this exquisite piece features a bold design with alternating rows of deep blue sapphires

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Sapphire Precision Square Cut Diamonds 14K White Gold Statement Band Ring

$4,500

Pear Shaped Ceylon Blue Sapphire Minimal Studs Studded With Diamonds in 18k Gold

By Artisan NYC

Located in New York, NY

gold and accented with 0.24 carats of diamonds. The deep blue sapphires bring subtle color, while the

Category

21st Century and Contemporary Indian Art Deco Stud Earrings

Materials

Sapphire, Diamond, Blue Sapphire, 18k Gold

Pear Shaped Ceylon Blue Sapphire Minimal Studs Studded With Diamonds in 18k Gold

$2,813

IGI Certified 2.90 Carat Blue Sapphire Diamond Ring in 18K White Gold

Located in KOWLOON, HK

. The combination of the deep blue sapphire and the dazzling diamonds creates a harmonious contrast

Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, White Gold

IGI Certified 2.90 Carat Blue Sapphire Diamond Ring in 18K White Gold

$3,920 Sale Price

20% Off

Round Diamond and Blue Sapphire Diagonal Cluster Motif Ring 14 Karat White Gold

Located in Scottsdale, AZ

flair. Set in 14 karat white gold, the ring features a central cluster of deep blue sapphires surrounded

Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 14k Gold, White Gold

Round Diamond and Blue Sapphire Diagonal Cluster Motif Ring 14 Karat White Gold

$3,050

Floral Diamond Blue Sapphire Tennis Bracelet in 14k Solid Gold (Certified)

Located in New Delhi, DL

deep blue sapphires set in 14k solid gold. Each sapphire is cushion-cut and placed between diamond

Category

21st Century and Contemporary Indian Art Deco Tennis Bracelets

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Floral Diamond Blue Sapphire Tennis Bracelet in 14k Solid Gold (Certified)

$9,422 / item

Diamond Blue Sapphire Art Deco Style Stud Earrings in 14K White Gold

Located in Bangkok, TH

diamonds and deep blue sapphires, their symmetrical design captures timeless elegance and sophistication

Category

21st Century and Contemporary Thai Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Diamond Blue Sapphire Art Deco Style Stud Earrings in 14K White Gold

$2,800 Sale Price

20% Off

1.51 Carat Oval Diamond and Blue Sapphire Platinum Band Ring Tamir by Merkaba

By Tamir

Located in Beverly Hills, CA

brilliance with deep blue elegance. Three oval diamonds total 1.51 carats and are graded E color with VS1

Category

21st Century and Contemporary American Modern Band Rings

Materials

Blue Sapphire, Sapphire, Multi-gemstone, White Diamond, Diamond, Platinum

1.51 Carat Oval Diamond and Blue Sapphire Platinum Band Ring Tamir by Merkaba

$14,500

Blue Sapphire and Diamond Vintage Style Cluster Ring in Solid 9K Yellow Gold

Located in Bangkok, TH

At the heart of this stunning piece blooms a deep blue sapphire, surrounded by delicate diamond

Category

21st Century and Contemporary Thai Edwardian Cluster Rings

Materials

Blue Sapphire, Diamond, Yellow Gold, 9k Gold

Blue Sapphire and Diamond Vintage Style Cluster Ring in Solid 9K Yellow Gold

$1,050

London Blue Topaz Diamond 7 Carats 14 Karat White Gold Bold Statement Ring

By Five Star Jewelry

Located in Austin, TX

blue. This London blue topaz is cut in an emerald shape, showcasing the deep blue colors perfectly

Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, 14k Gold, White Gold

London Blue Topaz Diamond 7 Carats 14 Karat White Gold Bold Statement Ring

$2,225 / item

2.95 Carat Blue Sapphire and Diamond Seven Stone Ring set in 18K Yellow Gold

Located in London, GB

2.95 Carat Oval-cut Blue Sapphire and Round Brilliant Diamond Seven Stone Ring set in 18K Yellow

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, Yellow Gold

2.95 Carat Blue Sapphire and Diamond Seven Stone Ring set in 18K Yellow Gold

$11,837

Peter Suchy GIA 6.50 Carat Oval Blue Sapphire Diamond Gold Engagement aRing

By Peter Suchy

Located in Stamford, CT

Stunning deep blue natural oval sapphire and diamond engagement ring. At the center of this setting

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

Peter Suchy GIA 6.50 Carat Oval Blue Sapphire Diamond Gold Engagement aRing

$19,900

Modernist Blue Sapphire and Diamond Bangle Bracelet for Mom in 14k Yellow Gold

By VR Jewels

Located in New York, NY

alternating sparkling diamonds and deep blue sapphires totaling 0.75 carats. Its sleek silhouette and delicate

Category

21st Century and Contemporary American Modern Bangles

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, Yellow Gold

Modernist Blue Sapphire and Diamond Bangle Bracelet for Mom in 14k Yellow Gold

$2,636 Sale Price / item

20% Off

7.15 Carat Oval Cut Blue Sapphire Diamond Halo Ring in 14K Yellow Gold

By Gad Co.

Located in Miami, FL

GRS Certified 7.15 carat oval cut natural Vivid to Deep Blue Sapphire and round/oval diamond halo

Category

2010s North American Modernist Cocktail Rings

Materials

Diamond, Blue Sapphire, Yellow Gold

7.15 Carat Oval Cut Blue Sapphire Diamond Halo Ring in 14K Yellow Gold

$60,000

1.75ct Green Blue Oval Cut Sapphire And Diamond 18k White Gold Three Stone Ring

By Gems and Jewels UK

Located in Birmingham, GB

Natural Deep Green Blue Sapphire And Diamond Three Stone 18k White Gold Ring. 1.75 Total Carat

Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Green Sapphire, Gold, 1...

1.75ct Green Blue Oval Cut Sapphire And Diamond 18k White Gold Three Stone Ring

$2,339

Blue Topaz Sapphire and Diamond Art Deco Style Halo Ring in 9K Yellow Gold

Located in Bangkok, TH

waters. Encircled by a shimmering halo of deep blue sapphires and sparkling diamonds, the design exudes

Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Topaz, Blue Topaz, Yellow Gold, 9k Gold

Blue Topaz Sapphire and Diamond Art Deco Style Halo Ring in 9K Yellow Gold

$1,600

Unheated Blue Sapphire Cocktail Ring

Located in Ramat Gan, IL

between the deep blue tones and sparkling diamonds enhances the brilliance of the central stone, creating

Category

21st Century and Contemporary Israeli Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Unheated Blue Sapphire Cocktail Ring

$8,500

Diamond Blue Sapphire Art Deco Style Target Engagement Ring in 18K White Gold

Located in Bangkok, TH

contrast between the deep blue sapphire and the radiant diamonds creates a mesmerizing effect, making this

Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Sapphire, Topaz, Blue Sapphire, Gold, White Gold, 18k Gold

Diamond Blue Sapphire Art Deco Style Target Engagement Ring in 18K White Gold

$4,700

Old European Blue Topaz Halo Ring (Approx. 1.7-Carats) Diamond, 18k White Gold

Located in New York, NY

blue topaz and dazzling diamonds creates an enchanting contrast, making this piece a meaningful gift or

Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Topaz, Blue Topaz, Gold, White Gold

Old European Blue Topaz Halo Ring (Approx. 1.7-Carats) Diamond, 18k White Gold

$1,200

Oval Cut Blue Sapphire and Diamond Halo Wide Band Ring in 14 Karat Yellow Gold

Located in Scottsdale, AZ

color. The contrast between the sapphire’s deep blue and the diamonds’ radiant fire creates a harmonious

Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Blue Sapphire, Sapphire, Diamond, Yellow Gold, 14k Gold, Gold

Oval Cut Blue Sapphire and Diamond Halo Wide Band Ring in 14 Karat Yellow Gold

$3,687

Tiny Solitaire Blue Sapphire and Diamond Ring in 14k Solid White Gold for Her

By VR Jewels

Located in New York, NY

Tiny Deep Blue Sapphire and Diamond Ring in 14K Gold featuring natural blue sapphire of 0.55 carat

Category

21st Century and Contemporary American Art Deco Bridal Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 14k Gold, White Gold

Tiny Solitaire Blue Sapphire and Diamond Ring in 14k Solid White Gold for Her

$820 Sale Price / item

20% Off

VR Jewels 1.62 Ct Pear Cut Royal Blue Sapphire Diamond Ring in 18k White Gold

By VR Jewels

Located in New York, NY

18k white gold, the design enhances the sapphire’s deep blue hue while the sparkling diamonds are

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Blue Sapphire, Gold, 18k Gold, White Gold

VR Jewels 1.62 Ct Pear Cut Royal Blue Sapphire Diamond Ring in 18k White Gold

$1,872 Sale Price / item

20% Off

1.95 Carat Blue Tanzanite Ring 18 Karat White Gold with Diamonds

Located in Brooklyn, NY

Round Tanzanite AAA brilliant deep Blue color 1.95 carat. Total diamonds 0.06 carat G H-VS 18k

Category

2010s Thai Fashion Rings

Materials

Diamond, Tanzanite, White Gold

1.95 Carat Blue Tanzanite Ring 18 Karat White Gold with Diamonds

$4,199

1.10 Carat Blue Sapphire Ring 14 Karat White Gold with Diamonds.

Located in Brooklyn, NY

Round Sapphire AAA brilliant deep Blue color 1.10carat. Total diamonds 0.20 carat G H-VS 14k White

Category

2010s Thai Artisan Fashion Rings

Materials

Diamond, Sapphire, White Gold

1.10 Carat Blue Sapphire Ring 14 Karat White Gold with Diamonds.

$3,799

Art Deco 1.81 Carat Blue Sapphire and Diamond Cocktail Ring in 18K and Platinum

Located in Addison, TX

has an intricate filigree and an etched design that accents the diamonds and deep blue sapphire

Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum, 18k Gold

Art Deco 1.81 Carat Blue Sapphire and Diamond Cocktail Ring in 18K and Platinum

$5,500

Dark Blue Azurite Bezel Set Diamond Halo 14K Gold Statement Earrings

By Unbranded

Located in Oakton, VA

A pair of striking earrings featuring deep blue azurite surrounded by delicate diamonds, set in 14k

Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, 14k Gold

Dark Blue Azurite Bezel Set Diamond Halo 14K Gold Statement Earrings

$2,250

Diamond Lab Blue Star Sapphire Roller Skate Charm / Pendant in Platinum

Located in Scottsdale, AZ

combination of the deep blue sapphires and the shimmering diamonds creates a striking contrast against the

Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Diamond Lab Blue Star Sapphire Roller Skate Charm / Pendant in Platinum

$2,625

Royal Blue Lapis Lazuli 11.5mm Diamond Earrings With Gold Veins Gold Spots

Located in Hong Kong, HK

Please check out the HD video! Here is nice pair of earrings made with deep royal blue Lapis and

Category

2010s Hong Kong Clip-on Earrings

Materials

Diamond, White Diamond, Lapis Lazuli, Gold, 18k Gold, White Gold

Royal Blue Lapis Lazuli 11.5mm Diamond Earrings With Gold Veins Gold Spots

$4,500

Certified 17.26ct Ceylon Blue Cushion Sapphire Diamond 18K Cocktail Ring

Located in Miami, FL

This exquisite hand-made cocktail Ring, presented a deep blue sapphire Adorned by a diamond halo

Category

Vintage 1950s American Modern Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

Certified 17.26ct Ceylon Blue Cushion Sapphire Diamond 18K Cocktail Ring

$78,399 Sale Price

20% Off

Blue Star Sapphire and Diamond Ring in Platinum circa 1950 s

Located in Wailea, HI

Blue Star Sapphire and Diamond Ring in Platinum circa 1950's A Rare Deep Blue Round Cabochon

Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Star Sapphire, Platinum

Blue Star Sapphire and Diamond Ring in Platinum circa 1950 s

$16,500

Dark Blue Azurite Bezel Set Diamond Halo 14K White Gold Statement Ring

By Unbranded

Located in Oakton, VA

showcases a large, faceted blue azurite, elegantly framed by a halo of sparkling diamonds. The deep blue

Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, 14k Gold, White Gold

Dark Blue Azurite Bezel Set Diamond Halo 14K White Gold Statement Ring

$1,850

Classy 18K White Gold 3 Carat Blue Kyanite 0.06 Carat White Diamonds Earrings

By Rossella Ugolini

Located in Rome, IT

embellished with Satin Rock Crystal, White Diamonds and Deep Blue Kyanite Oval cut. These beautiful delicate

Category

2010s Italian Art Deco Hoop Earrings

Materials

Diamond, Kyanite, Rock Crystal, White Diamond, 18k Gold, White Gold, Gold

Classy 18K White Gold 3 Carat Blue Kyanite 0.06 Carat White Diamonds Earrings

$5,777

Antique Burmese Certified 10.18 Carat Blue Star Sapphire and Diamond Ring

Located in OVIEDO, AS

RARE BURMESE (Mogok - Myanmar) BLUE STAR SAPPHIRE AND DIAMOND RING, not heated, not treated

Category

Antique Late 19th Century European Modernist Dome Rings

Materials

Diamond, Star Sapphire, 18k Gold

Antique Burmese Certified 10.18 Carat Blue Star Sapphire and Diamond Ring

$14,999

Marquise Shape Diamond Blue Sapphire Art Deco Style 18K White Gold Shield Ring

By Unbranded

Located in Oakton, VA

design. The bold contrast between the deep blue sapphires and the sparkling diamonds enhances the central

Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Marquise Shape Diamond Blue Sapphire Art Deco Style 18K White Gold Shield Ring

$7,500

AIG Certified 3.80 Ct Blue Ceylon Sapphire 2.15 Ct Diamonds 18K Gold Ring

Located in New Delhi, Delhi

An exquisite ring crafted with a stunning combination of sapphire, adorned with Diamonds. The deep

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

AIG Certified 3.80 Ct Blue Ceylon Sapphire 2.15 Ct Diamonds 18K Gold Ring

$12,373

Victorian Style Bangle in 14K Yellow Gold with Diamonds and Blue Enamel Accents

Located in Palm Beach, FL

A beautiful 14K yellow gold Victorian revival hinged bangle bracelet with diamonds and deep blue

Category

Late 20th Century Unknown Victorian Bangles

Materials

Diamond, Gold, 14k Gold, Yellow Gold, Enamel

Victorian Style Bangle in 14K Yellow Gold with Diamonds and Blue Enamel Accents

$6,200

Blue Sapphire 14K (or 18k upon request) Yellow Gold Diamond Eternity Band Ring

Located in Los Angeles, CA

regal beauty with its seamless blend of deep blue sapphires and brilliant white diamonds. Crafted in

Category

2010s American Modern Band Rings

Materials

14k Gold, Rose Gold, White Gold, Yellow Gold, Platinum

Blue Sapphire 14K (or 18k upon request) Yellow Gold Diamond Eternity Band Ring

$23,419 / item

1.74ct GIA Certified Untreated Australian Sapphire Diamond Platinum Pendant

By Gems and Jewels UK

Located in Birmingham, GB

Natural Deep Blue Green Australian Sapphire & Diamond 950 Platinum Pendant Necklace. 1.74ct total

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, Blue Sapphire, Green Sapphire, White Diamond, Platinum

1.74ct GIA Certified Untreated Australian Sapphire Diamond Platinum Pendant

$2,064

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Deep Blue Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate deep blue diamond for your needs in our varied inventory. Frequently made of gold, white gold and 18k gold, this item was constructed with great care. Find an antique version now, or shop for 412 vintage or 493 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a deep blue diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 carat and 1 carat carat weights, specifically, are sought with frequency. Creating a deep blue diamond has been a part of the legacy of many jewelers, but those produced by Le Vian, VR Jewels and Gems and Jewels UK are consistently popular. While most can agree that any deep blue diamond from our collection can easily elevate most outfits, but the choice of a diamond version from the 688 available is guaranteed to add a special touch to your ensemble. An oval cut version of this piece has appeal, but there are also round cut and brilliant cut versions for sale. Most of our deep blue diamond for sale are for women, but there are 249 pieces available to browse for men.

How Much is a Deep Blue Diamond?

Prices for a deep blue diamond can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $11,800,000, while this accessory, on average, fetches $4,344.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings.

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.

Questions About Deep Blue Diamond

Is a blue diamond a real diamond?
1 Answer
1stDibs ExpertAugust 17, 2021
Yes, a blue diamond is a real diamond. Contrary to popular belief, diamonds come in an array of colors aside from clear. Blue diamonds are neither color-treated nor enhanced to deliver the icy shade, which can range from a seafoam green to a royal blue.
Are there blue-green diamonds?
1 Answer
1stDibs ExpertApril 5, 2022
Yes, there are blue-green diamonds. However, natural ones are very rare, so most are man-made. The Dresden Green is the most famous example of a genuine blue-green diamond gemstone. You can find a wide selection of diamond gemstone jewelry on 1stDibs.
What is a blue diamond worth?
1 Answer
1stDibs ExpertFebruary 22, 2021
A light blue 0.5 carat diamond is worth roughly $26,280 on average. A deep blue 0.25 diamond, costs $75,000 on average. Blue diamonds are the rarest color of diamond, only found in three areas of the world: Australia, South Africa, and India. The deeper the blue diamonds are even more rare and therefore more expensive.
Are Blue Nile diamonds real diamonds?
1 Answer
1stDibs ExpertAugust 26, 2024
Yes, Blue Nile diamonds are real diamonds. The luxury jewelry maker uses natural diamonds ethically sourced from mines for many of its pieces. In addition, Blue Nile offers an assortment of lab-created diamond rings, earrings, necklaces and bracelets. Lab-created diamonds are still real, but they are human-made rather than mined. On 1stDibs, find an assortment of Blue Nile diamond jewelry.
Are blue diamonds worth anything?
1 Answer
1stDibs ExpertSeptember 16, 2024
Yes, blue diamonds may be worth something. How much a particular gemstone is worth depends on its color, cut, clarity and size, measured in carats. Generally, naturally occurring blue diamonds are worth more than human-made synthetic ones. A certified appraiser or knowledgeable jeweler can inspect your loose gemstone or diamond jewelry and provide you with its estimated value. Explore a diverse assortment of blue diamond jewelry on 1stDibs.
Are Blue Nile diamonds legit?
1 Answer
1stDibs ExpertApril 22, 2024
Yes, Blue Nile diamonds are legit. The jewelry maker offers both natural diamonds sourced from mines and lab-created diamonds produced via controlled scientific techniques. Both types of diamonds are legitimate or genuine gemstones. Find a range of Blue Nile diamond jewelry on 1stDibs.
How can I tell if my blue diamond is real?
1 Answer
1stDibs ExpertAugust 29, 2024
To tell if your blue diamond is real, look for a maker's mark on your piece. By researching the manufacturer using trusted online resources, you can find out if the jewelry maker tends to use authentic gemstones or rhinestones in its pieces. If you can't find a mark or are still uncertain, consult a certified appraiser or knowledgeable jeweler. Performing home tests for diamond authenticity can damage your jewelry, so getting a professional opinion is often the best way to protect your piece. Find a range of blue diamond jewelry on 1stDibs.
How much is a blue diamond ring worth?
1 Answer
1stDibs ExpertOctober 5, 2021
A blue diamond ring worth depends on the type of blue diamond. Ideally, a blue diamond’s cost is based on its 4Cs (cut, color, clarity, and carat), with the intensity of the color being the dominant factor. A blue diamond ring price ranges between $6,800 to $11,200. On 1stDibs, you can find a range of exquisite antique and vintage blue diamond rings.
Does Blue Nile sell real diamonds?
1 Answer
1stDibs ExpertMay 30, 2024
Yes, Blue Nile sells real diamonds. Many of the jewelry maker's pieces feature natural diamonds. Others are set with lab-created diamonds, which are real but are the result of processes performed in laboratories. On 1stDibs, explore a collection of Blue Nile diamond jewelry from some of the world's top sellers.
How much is a natural blue diamond worth?
1 Answer
1stDibs ExpertOctober 5, 2021
The price of a natural blue diamond is determined first by the color and then its clarity. Depending on these factors and the size chosen, there is a huge variation in price. You will find the blue diamond price range from under $2,000 to over $10,000 on 1stDibs.
How much is a 1-carat blue diamond worth?
1 Answer
1stDibs ExpertSeptember 16, 2024
How much a 1-carat blue diamond is worth depends on its cut, clarity and color. Human-made synthetic blue diamonds of that size are often worth less than $10,000, while natural examples sourced through mining are generally valued at much higher prices. If a gemstone is set in a piece of jewelry, it may have additional value due to the precious metals, the maker of the piece, its age and other factors. Because so many variables can impact the potential value of a blue diamond, experts generally recommend having a certified appraiser or experienced jeweler assist with the valuation process. On 1stDibs, explore a diverse assortment of blue diamond jewelry.