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Diamond Yellow Sapphire Cocktail Ring Design by Ella Gafter
By Ella Gafter
Located in New York, NY
The diamond and yellow sapphire ring features 2 faceted emerald-cut yellow sapphires of brilliant
Category

21st Century and Contemporary Italian Artist Cocktail Rings

Materials

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

Bochic “Orient” Emerald, Ruby, South Sea Diamond Ring Set In 18K Gold Silver
By Bochic
Located in New York, NY
Rubies - 2 carats Natural Emeralds - 2 carats Diamonds - 2 carats South Sea Pearl This Ring is from
Category

21st Century and Contemporary Thai Baroque Revival Cocktail Rings

Materials

Diamond, Emerald, Ruby, Sapphire, 18k Gold, Silver

Bochic “Orient” Vintage Pearl Sapphire Dragon Bangle Set In 18K Gold Silver
By Bochic
Located in New York, NY
Vintage White Pearl Natural Multi Color Sapphire from Sri Lankan 2 carats Sapphire colors, Red, Orange
Category

Late 20th Century Thai Baroque Bangles

Materials

Pearl, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, 18k Gold...

Vintage 3.00ct Sapphire and Diamond Cluster Ring, c.1970s
Located in London, GB
stunning stones. Gemstone: Sapphire Stone Shape: Emerald cut Carat Weight: 3.00ct Metal: 18ct White Gold
Category

Vintage 1970s British Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Antique 1.50Ct Sapphire and 0.24Ct Diamond 18k Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
with two emerald cut blue sapphires, totalling 1.50 carats, channel set in a vertical linear formation
Category

Vintage 1930s Engagement Rings

Materials

Diamond, Sapphire, Yellow Gold, Platinum

Bochic “Orient” Vintage Jade Sapphire Dragon Bangle Set In 18K Gold Silver
Located in New York, NY
motif Vintage Carved Mint Vintage Jade 9 carats Natural Multi Color Sapphire from Sri Lankan 2 carats
Category

20th Century Thai Baroque Bangles

Materials

Jade, Sapphire, Yellow Diamond, Blue Sapphire, Pink Sapphire, Green Sapp...

Diamond Rainbow Sapphire Octagon Shape Stud 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Gemstones  Type: Rainbow Sapphire Shape: French Cut Number: 24 Weight: 1.70 Carat (approx. in total) These
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold

0.73 Carat Natural Rose Cut Diamond Ring Set in Platinum
Located in Tokyo, JP
A beautiful halo ring featuring a 0.73 Carat Natural Rose Cut Diamond and 0.54 Carats Diamond
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Platinum

Handmade Platinum GIA Certified 18.90 Carat Cushion Cut Pink Topaz Ring
Located in Los Angeles, CA
Cut Purple Pink Topaz 18.90 Carats, 6 Round Diamonds .09 Carats, 4 Marquise Emeralds 0.29 Carats, 4
Category

21st Century and Contemporary American Art Deco Cocktail Rings

Materials

Topaz

Emerald Diamond Edwardian Inspired Vintage Style Filigree White Gold Earrings
By Unbranded
Located in Oakton, VA
Featuring 0.15 carat blue sapphire at each center and ornate vintage inspired design, these
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

Art Deco Style 17.38 CTS Aquamarine Diamond and Sapphire Earring
Located in New York, NY
emerald-cut aquamarines totaling 17.38 carats *Accented by 0.48 carats of calibrated-cut sapphires and
Category

21st Century and Contemporary Art Deco Lever-Back Earrings

Materials

Aquamarine, Diamond, Sapphire, 18k Gold, Platinum

IGI Certified 1.48ct Blue Green No Heat Sapphire Fancy Platinum Signet Band Ring
Located in Birmingham, GB
clean stone. The sapphire also has a unique fancy tapered emerald cut which shows lots of sparkle and
Category

21st Century and Contemporary Signet Rings

Materials

Sapphire, Blue Sapphire, Green Sapphire, Platinum

Sapphire with Diamond Art Deco Style Engagement Ring in 14K White Gold
Located in Bangkok, TH
: Emerald Cut Size: 5 x 3 mm. Number: 1 Weight: 0.30 Carat (approx.) Accent Gemstones Type: Diamond Shape
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

Natural Tourmaline Sapphire Ring 7 14k W Gold 8.7 TCW Certified
Located in Brooklyn, NY
: Moderate Metal Color: White Ring Size: 7 Weight: 6.55 Grams 2 Emerald Cut Sapphires: Approx. 0.66 CTW
Category

2010s American Fashion Rings

Materials

Sapphire, Tourmaline, Gold

Gaetano Chiavetta Sapphire and Diamond Double Snake Ring
Located in London, GB
tomb. Condition: Used (Excellent) Weight: 8.7 grams Ring Size: P 1/2 (57) Band Width: 3mm Sapphire
Category

21st Century and Contemporary English Victorian Engagement Rings

Materials

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

Bochic “Capri” Diamonds, Emeralds Turquoise Necklace Set In 18K Silver
By Bochic
Located in New York, NY
carats Natural Emerald - 2 carats Natural Turquoise The Bochic "Capri" Multi Fancy Gems Necklace is
Category

21st Century and Contemporary Thai Baroque Drop Necklaces

Materials

Diamond, Emerald, Turquoise, 18k Gold, Silver

Georgios Collections 18 Karat Yellow Gold Diamond Ruby Sapphire Drop Earrings
By Georgios Collections Inc
Located in Astoria, NY
Byzantine-era style granulation workmanship. These beautiful earrings feature 2 brilliant-cut Rubies with a
Category

21st Century and Contemporary Greek Byzantine Dangle Earrings

Materials

Diamond, White Diamond, Yellow Diamond, Emerald, Multi-gemstone, Ruby, S...

Blue Sapphire Halo Diamond Ring in 14k Solid Gold (Certified)
Located in New Delhi, DL
classic design with lasting beauty. ★ MATERIALS ★ ♥Gemstone: Natural sapphire Shape: Emerald Cut Carat
Category

21st Century and Contemporary Indian Art Deco Engagement Rings

Materials

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

Pink Sapphire Diamond Double Halo Studs 14K White Rose Earrings
By Unbranded
Located in Oakton, VA
Center Gemstones Type: Pink Sapphire Shape: Emerald Cut Size: 5×3 mm. Number: 2 Weight: 0.80 Carat
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Pink Sapphire, 14k Gold, Rose Gold, White Gold

Round Diamond Green Emerald Invisible Set Double Halo Stud White Gold Earrings
By Unbranded
Located in Oakton, VA
Blue Sapphire, Emerald, Ruby) are specialty cut to surround the excellent round brilliant cut center
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

Sapphire Diamond Art Deco Style Lever Back Earrings in 18K White Gold
Located in Bangkok, TH
Center Gemstones Type: Blue Sapphire Shape: Emerald Cut Size: 5 x 3 mm. Number: 2 Weight: 0.70 Carat
Category

21st Century and Contemporary Thai Art Deco Lever-Back Earrings

Materials

Diamond, Sapphire, White Gold, 18k Gold

Bespoke 2 Carat Round Diamond GIA Certificate 18 Karat Gold Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
a magnificent 2 carats. The meticulous craftsmanship and attention to detail are evident in every
Category

2010s British Modern Engagement Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, White Gold

14K White Gold Blue Sapphire Diamond III Eternity Band, 2.53ct
Located in Houston, TX
This ring is made in 14K white gold and features 9 emerald cut blue sapphires weighing 1.40 carats
Category

2010s American Modern Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Exquisite 18K 750 White Gold Royal Blue Sapphire and Natural Diamond Ring
Located in New York, NY
Grade: F Diamond Cut: Brilliant Full Cut 2: Secondary Stone: Sapphire Sapphire Carat Weight: 1.82 Carat
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

0.30 Ct Fine Natural Ruby 2 Ct Finest Diamond 18 Kt White Gold Flower Ring
Located in New York, NY
alongside 2 Carats of brilliant cut and Pear shape diamonds set in lustrous white gold. This ring stands as
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Ruby, Sapphire, Gold, 18k Gold, White Gold

Bochic “Orient” Opal, Ruby Sapphire Vintage Cluster Ring Set 18K Silver
By Bochic
Located in New York, NY
sapphire Orange natural sapphire Green natural emeralds Gray natural gray single cut diamonds 5 carats
Category

21st Century and Contemporary Thai Baroque Cocktail Rings

Materials

Opal, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Gre...

2.00ct Bi Colour Yellow Blue Australian Sapphire 18k White Gold Three Stone Ring
Located in Birmingham, GB
, particularly with such distinct colour variation such as in these stones. Approx. 2 carat total weight. The
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire,...

Kern Jewelry Set Gold Turquoise Cabochon Sapphire Diamond
Located in Beverly Hills, CA
single cut diamonds, punctuated by round faceted sapphires in deep blue. The diamonds are set to follow
Category

Vintage 1970s Unknown Cocktail Rings

Materials

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

Blue Aquamarine Sapphire Diamond Art Deco Style Stud 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
: Aquamarine Shape: Emerald Cut Size: 5 x 5 mm. Number: 2 Weight: 1.40 Carat (approx. in total) Accent
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

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

Natural Sapphire Diamond Ring Size 6.5 14k W Gold 17.73 TCW Certified
Located in Brooklyn, NY
: Moderate Measurement: 21.11 x 16.20 x 5.69 mm 2 Emerald Cut Sapphires: 0.66 Ctw (Colorless/Transparent
Category

1990s American Engagement Rings

Materials

Diamond, Sapphire, Gold

Diamond Rainbow Sapphire Art Deco Style Pendant in 18K White Gold
Located in Bangkok, TH
Sapphire, Emerald, or Ruby) is a specialty cut to surround the excellent emerald cut center diamond, which
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold

Bochic “Capri” Vintage Diamonds, Emeralds Turquoise Necklace Set In 18K Sil
By Bochic
Located in New York, NY
Diamonds - 6 carats Natural Emerald - 2 carats Natural Turquoise The Bochic "Capri" Multi Fancy Gems
Category

Late 20th Century Indian Baroque Drop Necklaces

Materials

Diamond, Emerald, Turquoise, 18k Gold, Silver

Bochic “Orient” Vintage Sapphire Jade Dragon Bangle Set In 18K Gold Silver
Located in New York, NY
Jade - 9 carats Natural Multi Color Sapphire from Sri Lankan - 2 carats Sapphire colors, Red, Orange
Category

Late 20th Century Thai Baroque Bangles

Materials

Jade, Sapphire, Silver, 18k Gold

Georgios Collections 18 Karat Yellow Gold Emerald Etruscan-Style Drop Earrings
By Georgios Collections Inc
Located in Astoria, NY
oval-cut natural Emeralds a total weight of 0.82 Carat and finished with a unique velvet background. We
Category

21st Century and Contemporary Greek Byzantine Dangle Earrings

Materials

Emerald, Garnet, Rubelite, Ruby, Sapphire, Blue Sapphire, Pink Sapphire,...

1.06 Carat, H Si-2, Earth-Mined Diamond Cocktail Ring made in Platinum
Located in Tokyo, JP
A beautiful ring featuring a CGL Certified 1.06 Carat Natural H, Si-2, Very Good (Cut) Diamond and
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Platinum

4.4mm Round Diamond Emerald Invisible Set Double Halo Stud White Gold Earrings
By Unbranded
Located in Oakton, VA
Blue Sapphire, Emerald, Ruby) is a specialty cut to surround the excellent round brilliant cut center
Category

21st Century and Contemporary Art Deco Stud Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

Bochic “Orient” Vintage Ruby, Pink Opal Multi Sapphire Earrings Set 18K Gold &
By Bochic
Located in New York, NY
Rubies - 2 carats Multi color Sapphires - 1 carat Pink Opal The earrings from the "Orient" traveling
Category

Late 20th Century Thai Baroque Revival Clip-on Earrings

Materials

Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sap...

Vintage Art Deco Estate Blue Sapphire, Diamond Enamel Bangle Bracelet
By Gad Co.
Located in Miami, FL
emerald step-cut, and EGL-certified. It is paired with an additional 2 mixed-cut blue sapphires weighing
Category

Vintage 1950s North American Art Deco Bangles

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 14k Gold, 18k Gold, Yellow Gold,...

Diamond Rainbow Sapphire Octagon Shape Stud Earrings in 14K White Gold
Located in Bangkok, TH
: Diamond Shape: Emerald Cut Average Color: G Average Clarity: VS Size: 3x3 mm. Number: 2 Weight: 0.30 Carat
Category

21st Century and Contemporary Thai Art Deco Stud Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Certified Octagon Violet Blue Ceylon Sapphire Diamond 18k White Gold Halo Ring
By Gems and Jewels UK
Located in Birmingham, GB
octagonal emerald cut showing lots of brightness and light return. Very sparkly. This top grade sapphire
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Purple Sapphire, Gold, ...

Emerald and Diamond Art Deco Style Cluster Earrings in 14K White Gold
Located in Bangkok, TH
Type: Emerald Shape: Round Size: 2.7 mm. Number: 2 Weight: 0.13 Carat (approx. in total) Accent
Category

21st Century and Contemporary Thai Art Deco Lever-Back Earrings

Materials

Diamond, Sapphire, Emerald, 9k Gold, White Gold

Temple St Clair Cocktail Ring 18Kt Yellow Gold With 6.20 Ctw Diamonds Emerald
By Temple St. Clair
Located in Miami, FL
carats, white colorless E/F color, VS-2 clarity. Emerald: Mount in the center in a four-prongs setting
Category

Late 20th Century Italian Modernist Cocktail Rings

Materials

Diamond, White Diamond, Emerald, Gold, 18k Gold, Yellow Gold

FRENCH 1925 Art Deco Rock Quartz Studs Earrings In 18Kt Gold With Sapphires
Located in Miami, FL
sapphires with a weight of about 0.90 carats. Rock Quartz: Mount in bezels, with 2 round cabochons cuts
Category

Vintage 1920s French Art Deco Stud Earrings

Materials

Quartz, Sapphire, Blue Sapphire, Gold, White Gold, Platinum

Art Deco Style 0.82 Carat White Rose Cut Diamond Ruby Yellow Gold Band Ring
By Luigi Ferrara
Located in Naples, IT
Carats of White Rose Cut Diamonds. This Ring has 0.60 Carats of Modern Round Cut Rubies. This Ring is
Category

Late 20th Century Italian Art Deco Cocktail Rings

Materials

Ruby, White Diamond, Diamond, Sterling Silver, Yellow Gold, 9k Gold

Blue Sapphire Onyx Diamond Art Deco Style Men Band Ring in 18K White Gold
Located in Bangkok, TH
Center Gemstones Type: Blue Sapphire Shape: Emerald Cut Size: 10 x 8 mm. Number: 1 Weight: 4.70 Carat
Category

21st Century and Contemporary Thai Art Deco Band Rings

Materials

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

18 Karat White Gold Ladies Ring with 2.81 ct. Natural Sapphire and diamonds
Located in Braintree, GB
- Weight : 14 grams Finger Size (UK) = M (US) = 6 1/2 (EU) = 52 1/2 Size : 2.7 x 2.3 x 1.3 cm Sapphire
Category

2010s American Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Citrine Emerald and Diamond Art Deco Style Cliff Earrings in 18K Gold
Located in Bangkok, TH
: 1.90 Carat (approx. total weight) Accent Gemstones I Type: Emerald Shape: French Cut Number: 40 Weight
Category

21st Century and Contemporary Thai Art Deco Clip-on Earrings

Materials

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

Blue Topaz Sapphire Diamond Art Deco Style Drop 14K White Gold Earrings
By Unbranded
Located in Oakton, VA
Shape: Emerald Cut Size: 9×7 mm. Number: 2 Weight: 5.90 Carat (approx. in total) Accent Gemstones I Type
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

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

Peter Suchy GIA Cert Purple Pink Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
cut center Sapphire in a platinum setting with 2 emerald and 2 tappered baguette side diamonds. The
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Platinum

Citrine Emerald and Diamond Art Deco Style Pendant in 14K White Gold
Located in Bangkok, TH
: Emerald Shape: French Cut Number: 20 Weight: 0.90 Carat (approx. in total) Accent Gemstones Type
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

Emerald, Yellow Sapphire, Diamond, 14k Gold, White Gold

Bochic “Orient” Vintage Pink Sapphire Pearl Brooch Set 18K Gold Silver
By Bochic
Located in New York, NY
Brilliant cut shapes Green Chrome dioxide on the leaves - 2 carat Black sapphire on the stems - 1 carat
Category

20th Century Thai Belle Époque Brooches

Materials

Pearl, Ruby, Pink Sapphire, Topaz, South Sea Pearl, Blue Sapphire, Silve...

Elongated Octagon Blue Topaz Sapphire Diamond Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
: Emerald Cut Size: 9 x 4.5 mm. Number: 1 Weight: 2.70 Carat (approx. total weight) Accent Gemstones  Type
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Georgios Collections 18 Karat Yellow Gold Emerald Multi-Color Diamond Band Ring
By Georgios Collections Inc
Located in Astoria, NY
cut natural Emerald total weight of 1.65 Carats, 4 brilliant-cut white Diamonds VS2 color G total
Category

21st Century and Contemporary Greek Byzantine Band Rings

Materials

Aquamarine, Diamond, White Diamond, Emerald, Multi-gemstone, Ruby, Sapph...

Platinum GIA Octagonal Greenish Blue No Heat Sapphire Diamond 3 Stone Ring
Located in Montclair, NJ
Diamonds - Emerald Cut - Prong Set - G/H Color - VS1/VS2 Clarity - 0.54ctw (exact) Total Carat Weight: 3.57
Category

2010s American Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

2 Carat Riviera Line Round Diamond 18 Karat Gold Four Claw Tennis Bracelet
By Hasbani Diamonds
Located in London, GB
) Colour: G - H Clarity: SI (eye clean) Cut: Round Cut Length: 18.5 cm (7.25 inch) aprox Width: 2 mm
Category

2010s British Modern Tennis Bracelets

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

Elongated Cushion Green Tsavorite Sapphire Onyx Diamond Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
Gemstones I Type: Blue Sapphire Shape: French Cut Size: 2 4 mm. Number: 16 Weight: 1.05 Carat (approx
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Georgios Collections 18 Karat Yellow Gold Diamond Emerald Drop Earrings
By Georgios Collections Inc
Located in Astoria, NY
background. These beautiful heart shape earrings feature 2 oval-cut and 2 brilliant-cut natural Emeralds
Category

21st Century and Contemporary Greek Byzantine Dangle Earrings

Materials

Diamond, White Diamond, Blue Diamond, Yellow Diamond, Pink Diamond, Blac...

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2 Carat Emerald Cut Sapphire For Sale on 1stDibs

Find the exact 2 carat emerald cut sapphire you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. Our collection of these items for sale includes 126 vintage editions and 347 modern creations to choose from as well. Making the right choice when shopping for a 2 carat emerald cut sapphire may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Creating a 2 carat emerald cut sapphire has been a part of the legacy of many jewelers, but those produced by Luigi Ferrara, David Gross Group and Roshe Jewels are consistently popular. Today, if you’re looking for an emerald cut version of this piece and are unable to find the perfect match, our selection also includes mixed cut and brilliant cut alternatives. When shopping for a 2 carat emerald cut sapphire, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 2 Carat Emerald Cut Sapphire?

The price for a 2 carat emerald cut sapphire starts at $56 and tops out at $563,000 with these rings, on average, selling for $6,800.

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.