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Art Deco Blue Zircon Rose Cut Diamond Platinum Petit Drop earrings
Located in Napoli, IT
Pretty Blue The prettiest Art Deco Blue Zircon drop earrings finely hand crafted of Platinum Top
Category

Vintage 1910s European Art Deco Dangle Earrings

Materials

Diamond, Blue Zircon, Platinum

Diamond Blue Sapphire Art Deco Style Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Exquisite early Art Deco inspired Diamond and Blue Sapphire earrings. The central Diamond is
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Art Deco Marquise Blue Sapphire and Diamond Ring mounted in Platinum
Located in OVIEDO, AS
Art Deco Marquise Blue Sapphire and Diamond Ring mounted in Platinum. Ca.1925 Art Deco platinum
Category

Early 20th Century Spanish Art Deco Cluster Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco style Platinum Ring with Aquamarine, Blue Sapphires and Diamonds
Located in Aventura, FL
Indulge in the elegance of this exquisite Art Deco style ring expertly crafted in platinum. At its
Category

1990s Art Deco Engagement Rings

Materials

Aquamarine, Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Octagon Blue Aquamarine Sapphire Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Breathtaking handcrafted white gold Art Deco style aquamarine, sapphire and diamond halo engagement
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Blue Sapphire, White Gold

Art Deco 18K White Gold Dangle Earrings with Blue Sapphires Diamonds
Located in Los Angeles, US
Art Deco style dangle earrings featuring 0.66 carat of Blue Sapphires and 2.26 carat of Diamonds
Category

2010s French Art Deco Dangle Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Art Deco Style Platinum Target Ring with Diamonds and Blue Sapphires
Located in Aventura, FL
, totaling approximately 0.10 carats, enhancing its overall brilliance. Period: 1990's Style: Art Deco Metal
Category

1990s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Art Deco Synthetic Blue Sapphire and Diamond Platinum Earrings
Located in OVIEDO, AS
Art-Deco Synthetic Blue Sapphire and Diamond Drop Earrings. Each earring features a magnificent
Category

Vintage 1910s Spanish Art Deco Drop Earrings

Materials

Diamond, Platinum, 18k Gold

Art Deco 4.49ctw Blue Zircon and Diamond Cocktail Ring in Platinum
Located in Boston, MA
Aston Estate Jewelry Presents: A classic Art Deco period blue zircon cocktail ring in platinum
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Blue Zircon, Platinum

Sapphire Diamond Deco Inspired Drop Earrings 7.71 Carat 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold drop earrings featuring 134 round brilliants weighing 1.28 carats and 8 blue
Category

2010s American Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, Sapphire, White Gold

Art Deco 18K White Gold Thalassa Ring with Blue Sapphires Diamonds
Located in Los Angeles, US
Art Deco ring featuring 0.69 carat of Blue Sapphires and 1.41 carats of Diamonds set in 18K White
Category

2010s French Art Deco Dome Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Three Stone Vintage Inspired Ring
By Unbranded
Located in Oakton, VA
A trio of rich midnight blue sapphires in tandem along with a row of glittering round cut diamonds
Category

21st Century and Contemporary Art Deco Three-Stone Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Aquamarine Sapphire Diamond Art Deco Style Earrings Ring Jewelry Set
By Unbranded
Located in Oakton, VA
Introducing our stunning Aquamarine Sapphire Diamond Art Deco Style Jewelry Set, a unique
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

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

Blue Sapphire Diamond Art Deco Style Band 14K White Gold Ring
By Unbranded
Located in Oakton, VA
A lovely Art Deco inspired half eternity band ring! The band is meticulously design with
Category

21st Century and Contemporary Art Deco Band Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Round Diamond Blue Sapphire Art Deco Style 18K White Gold Ring
By Unbranded
Located in Oakton, VA
every time it is worn, this lavishly appealing Art Deco diamond and sapphires engagement ring is the
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Aquamarine Sapphire Diamond Halo Art Deco Style White Gold Earrings
By Unbranded
Located in Oakton, VA
Introducing our stunning Aquamarine Sapphire Diamond Art Deco Style Earrings, a unique expression
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

Diamond Blue Sapphire Art Deco Style Cluster 14K White Gold Ring
By Unbranded
Located in Oakton, VA
Made entirely of white gold, this charming Art Deco inspired ring is elegant and timeless. Three
Category

21st Century and Contemporary Art Deco Cluster Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Art Deco Style Diamond Blue Sapphire 14K White Gold Dome Ring
By Unbranded
Located in Oakton, VA
Information Style: Art-deco Total weight: 3.32 g. (approx. total weight) Center Gemstone Type: Diamond Shape
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Art Deco Style Blue Sapphire Cabs Phosphosiderite Gold Diamond Enamel Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
gold 18 diamonds and blue enamel, finally the bottom part is composed of a pair of Phosphosiderite
Category

Vintage 1980s Thai Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, Gold, Enamel

Art Deco 1.76 Carat Old European Cut Diamond Sapphire 18 Karat White Gold Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 1.76 carats total - I color with I1
Category

Vintage 1930s Art Deco Engagement Rings

Materials

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

Art-Deco Platinum, Diamond and Natural Blue Sapphire Cocktail Ring
Located in Palm Beach, FL
This lovely and uniquely designed handmade platinum Art-Deco bombe dome ring is bezel set with
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Style Gold Diamonds Blue Sapphire Enamel Aquamarine Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
9 x 12 mm ,in the middle we have 2 white gold parts with diamonds and blue Enamels In 1978 our
Category

2010s Thai Art Deco Drop Earrings

Materials

Aquamarine, Diamond, Blue Sapphire, Gold, Enamel

Art Deco Style Gold Diamonds Blue Sapphire Enamel Aquamarine Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
9 x 12 mm ,in the middle we have 2 white gold parts with diamonds and blue Enamels In 1978 our
Category

2010s Thai Art Deco Drop Earrings

Materials

Aquamarine, Diamond, Blue Sapphire, Gold, Enamel

Art Deco Style Gold Diamonds Blue Sapphire Enamel Aquamarine Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
9 x 12 mm ,in the middle we have 2 white gold parts with diamonds and blue Enamels In 1978 our
Category

2010s Thai Art Deco Drop Earrings

Materials

Aquamarine, Diamond, Blue Sapphire, Gold, Enamel

Art Deco 14K Yellow Gold Blue Topaz Flower Ring with Diamonds
Located in Hong Kong, HK
Art Deco 14K Yellow Gold Blue Topaz Flower Ring with Diamonds Enhance your jewelry collection with
Category

2010s Hong Kong Art Deco Cocktail Rings

Materials

Diamond, Blue Topaz, 14k Gold, Yellow Gold

Blue Sapphire and Diamond Art Deco Style Platinum Ring by Sophia D.
By Sophia D
Located in New York, NY
Art Deco style ring that is set in platinum. The ring features a round cut center diamond that
Category

2010s Art Deco Fashion Rings

Materials

Diamond, Blue Sapphire, Platinum

Diamond Blue Sapphire Vintage Inspired Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
Capture the essence of timeless elegance with this stunning Art Deco-style target engagement ring
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Aquamarine Sapphire and Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
. Made in 14K white gold in style and design reminiscent of Art Deco era, the design of this ring has a
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Sophia D Art Deco Style Ring with 1.01 Carat Center Diamond Blue Sapphire
By Sophia D
Located in New York, NY
This stunning Art Deco-inspired ring by Sophia D features a 1.01 carat center diamond, surrounded
Category

2010s Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire

Sophia D. 4.51 Carat Blue Sapphire and Diamond Art Deco Platinum Ring
By Sophia D
Located in New York, NY
Sophia D Platinum Ring that features 4.51 carat of Blue Sapphire as a center stone surrounded with
Category

2010s Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Style Blue Sapphire Old Mine Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
gorgeous ring is a beautifully designed modern twist on an Art Deco era target ring. The chic
Category

2010s Italian Art Deco Cocktail Rings

Materials

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

Round Blue Aquamarine Sapphire Diamond Art Deco Style White Gold Ring
By Unbranded
Located in Oakton, VA
shimmering diamonds, creating a luxurious statement piece that embodies the sophistication of the Art Deco
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

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

Blue Sapphire Diamond Art Deco Style Three Stone White Gold Ring
By Unbranded
Located in Oakton, VA
would make a lovely engagement ring. 14K White Gold. Ring Information Style: Art-deco Total weight
Category

21st Century and Contemporary Art Deco Three-Stone Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Art Deco Style Blue Sapphire Phosphosiderite Gold Diamond Enamel Drop Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
In these earrings 2 large Blue Sapphire cabochons support 2 white gold elements and diamonds while
Category

2010s Thai Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, Gold, 14k Gold, Enamel

Art Deco Peacock Vintage Ring with Yellow Sapphire, Blue Sapphires Diamonds
Located in Tucson, AZ
carats. Channel set fine blue sapphires estimated 2 carats in blue sapphires. Estimated 1 carat diamond
Category

Early 20th Century American Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Yellow Sapphire, Platinum

Blue Sapphire Diamond Art Deco Style Pendant in 18K White Gold
Located in Bangkok, TH
iconic Art Deco movement, this stunning pendant showcases an approx. 1.6 carat oval cut blue sapphire
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire and Diamond Art Deco Style Engagement Ring in Platinum 950
Located in Bangkok, TH
details—ideal for making a lasting impression. Ring Information Style: Art-deco Metal: Platinum 950 Total
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Ring Blue Sapphire Light Yellow Diamond 18 Karat White Gold
Located in Brooklyn, NY
Brilliant Art Deco Style Ring. 18k White Gold 5.90 grams. Center Yellow Diamond cushion Shape 0.31
Category

2010s Thai Art Deco Fashion Rings

Materials

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

Art Deco Sapphire Diamond Ring
Located in London, GB
Art Deco sapphire and diamond ring. Set to centre with an oval old cut natural unenhanced sapphire
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco 14K Yellow Gold Blue Topaz Flower Pendant with Diamonds
Located in Hong Kong, HK
brilliance. Blue Topaz 6.47 Carat Diamond 0.15 carat Length 41 cm
Category

2010s Hong Kong Art Deco Pendant Necklaces

Materials

Diamond, Blue Topaz, 14k Gold, Yellow Gold

Shield Art Deco Style Inspired Blue Sapphire Diamond Platinum Ring
By Unbranded
Located in Oakton, VA
An Art Deco design with sapphire and diamond ring, shield-shaped, millgrain set with round diamonds
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Style Light Blue Topaz Sapphire Diamond Yellow Gold Shield Ring
By Unbranded
Located in Oakton, VA
blues. Blue topaz, blue sapphire, white topped gold, and accent diamonds form a cohesive authentic Art
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Blue Topaz, Gold, White Gold

Art Deco Style Oval Blue Topaz Blue Sapphire Diamond Double Halo White Gold Ring
By Unbranded
Located in Oakton, VA
oval 9 x 7 blue topaz gemstones at the center with round diamond and blue sapphires in beautiful halo
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Blue Zircon and Diamond Art Deco Ring in 18k White Gold
Located in Bloomington, MN
Blue Zircon and Diamond Art Deco Ring in 18k White Gold Introducing this exquisite Art Deco ring
Category

Late 20th Century Art Deco Fashion Rings

Materials

Diamond, Zircon, Blue Zircon, 18k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Drop Dangle 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Art Deco style design! The blue sapphire stands our beautifully in the center. The setting is
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Openwork Ring Earrings Jewelry Gold Set
By Unbranded
Located in Oakton, VA
Step into the elegance of the Art Deco era with this stunning Blue Sapphire Diamond Art Deco Style
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire Diamond Art Deco Style 14K White Gold Unique Pin Brooch
Located in Oakton, VA
: Art Deco Width: 31 mm. Length: 58 mm. Weight: 24.50 g. (approx. in total) Gemstones I Type: Diamond
Category

21st Century and Contemporary Art Deco Brooches

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Opal Blue Sapphire Diamond Art Deco Style Floral Yellow Gold Ring
By Unbranded
Located in Oakton, VA
is bordered with eight blue sapphires and on black enamel background. The ring features two diamonds
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Opal, Blue Sapphire, 9k Gold, Yellow Gold, Enamel

Round Diamond Blue Sapphire Art Deco Style Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Exquisite early Art Deco inspired Diamond and Blue Sapphire earrings. The central Diamond is
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Platinum Art Deco Pear Shape Diamond 8.59 Carat Blue Sapphire Engagement Ring
Located in Los Angeles, CA
DeKara Designs Collection Masterpiece Beautiful Modern/Art Deco Ceylon Blue Sapphire and Diamond
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Blue Sapphire Diamond Art Deco Style Circle Ring Drop White Gold Earrings
By Unbranded
Located in Oakton, VA
These fabulous Art Deco style blue sapphire and diamond drop earrings feature French cut channel
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Diamond Blue Sapphire Vintage Inspired Art Deco Style Drop White Gold Earrings
By Unbranded
Located in Oakton, VA
sapphires offers a timeless Art Deco look, perfect for adding a touch of vintage sophistication and luxury
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Omega Stud 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
the rich blue sapphire and radiant diamonds is set in a sleek, geometric Art Deco design. The omega
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Sapphire Diamond Vintage Inspired Art Deco Style White Gold Line Bracelet
By Unbranded
Located in Oakton, VA
. The bracelet is made in measures 185 mm. in length and is such a spectacular example of Art Deco
Category

21st Century and Contemporary Art Deco Link Bracelets

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Blue Sapphire Diamond Art Deco Style Openwork Earrings in 18K White Gold
Located in Bangkok, TH
Step into the elegance of the Art Deco era with this stunning Blue Sapphire Diamond Art Deco Style
Category

21st Century and Contemporary Thai Art Deco Dangle Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Art Deco 14K Yellow Gold Blue Topaz Flower Ring with Diamonds
Located in Hong Kong, HK
6.11 CT - Blue Topaz 0.15 CT - Diamonds Elevate your jewelry collection with this breathtaking
Category

2010s Hong Kong Art Deco Cocktail Rings

Materials

Diamond, Blue Topaz, 14k Gold, Yellow Gold

Blue Sapphire Diamond Vintage Inspired Art Deco Style Drop White Gold Earrings
By Unbranded
Located in Oakton, VA
essence of the Art Deco era. Each earring features sparkling blue sapphires, expertly complemented by
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

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Blue Diamond Art Deco For Sale on 1stDibs

Find the exact blue diamond art deco you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. You can easily find a 2249 antique edition and 567 modern creations to choose from as well. Making the right choice when shopping for a blue diamond art deco 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. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. A blue diamond art deco from Tutti Frutti Jewellery, Luigi Ferrara and Tiffany Co. — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes old european cut and oval cut alternatives. When shopping for a blue diamond art deco, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Blue Diamond Art Deco?

Prices for a blue diamond art deco can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $297 and can go as high as $325,000, while this accessory, on average, fetches $5,799.

A Close Look at Art Deco Jewelry

Fascination with the Jazz Age is endless, and even today jewelry designers continue to be inspired by authentic Art Deco jewelry and watches.

The Art Deco period, encompassing the 1920s and ’30s, ushered in a very distinct look in the design of jewelry. There were many influences on the jewelry of the era that actually began to take shape prior to the 1920s. In 1909, Serge Diaghilev brought the Ballet Russes to Paris, and women went wild for the company’s exotic and vibrant costumes It’s no wonder, then, that jade, lapis lazuli, coral, turquoise and other bright gemstones became all the rage. There already existed a fascination with the East, particularly China and Japan, and motifs consisting of fans and masks started to show up in Art Deco jewelry.

However, the event that had the greatest influence on Deco was the excavation of the tomb of King Tut in 1922. When the world saw what was hidden in Tut’s burial chamber, it sent just about everyone into a frenzy. Pierre Cartier wrote in 1923 that “the discovery of the tomb will bring some sweeping changes in fashion jewelry.” And he couldn’t have been more right. “Egyptomania” left an indelible mark on all of the major jewelry houses, from Cartier to Van Cleef Arpels, Boucheron and Georges Fouquet. (Cartier created some of the most iconic jewelry designs that defined this era.)

While a lot of Art Deco jewelry was black and white — the black coming from the use of onyx or black enamel and the white from rock crystal and diamonds — there is plenty of color in jewelry of the era. A perfect accent to diamonds in platinum settings were blue sapphires, emeralds and rubies, and these stones were also used in combination with each other.

Many designers employed coral, jade and lapis lazuli, too. In fact, some of the most important avant-garde jewelers of the period, like Jean Després and Jean Fouquet (son of Georges), would combine white gold with ebony and malachite for a jolt of color.

A lot of the jewelry produced during this time nodded to current fashion trends, and women often accessorized their accessories. The cloche hat was often accented with geometric diamond brooches or double-clip brooches. Backless evening dresses looked fabulous with sautoir necklaces, and long pearl necklaces that ended with tassels, popular during the Edwardian period, were favored by women everywhere, including Coco Chanel.

Find unique Art Deco necklaces, earrings, bracelets and other jewelry on 1stDibs.

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 ringsvintage engagement rings or Art Deco engagement rings

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