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Diamond and Semi Precious Stone Set Gold Aeroplane Brooch
Located in Worcester, Worcestershire
12 round brilliant cut diamonds, measuring between 1.20 and 1.80 mm in diameter. The cockpit with 1
Category

20th Century Collectible Jewelry

Materials

Gold

18kt gold and gem-set fish brooch by Aldo Cipullo for Cartier
By Aldo Cipullo for Cartier
Located in London, GB
weighing approximately 6 carats, a cabochon emerald weighing approximately 0.8 carats and 18 brilliant cut
Category

Vintage 1970s Brooches

Materials

Diamond, Emerald, Multi-gemstone, Ruby, Sapphire, 18k Gold

Amethyst and 18K White Gold Pendant (P13658n)
Located in Teófilo Otoni, MG
the 4Cs: cut, color, clarity, and carat weight. COLOR: The darker and more intense the color, the
Category

21st Century and Contemporary Brazilian Pendant Necklaces

Materials

Amethyst, Diamond, 18k Gold, White Gold

Amethyst and 18k White Gold Earring (B13203n)
Located in Teófilo Otoni, MG
the 4Cs: cut, color, clarity, and carat weight. COLOR: The darker and more intense the color, the
Category

21st Century and Contemporary Brazilian Dangle Earrings

Materials

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

VAN CLEEF ARPELS Gem Set Gold Earclips
By Van Cleef Arpels
Located in New York City, NY
carats, 20 round-cut sapphires with an approximate total weight of 1.60 carats, 12 round-cut emeralds
Category

French Clip-on Earrings

18k yellow gold and amethyst earrings (B13462n)
Located in Teófilo Otoni, MG
: Amethyst Approximate Weight of the Main Stone: 9.80 carats Has Diamonds: No Approximate Size: 3.3cm x 1.1cm
Category

21st Century and Contemporary Brazilian Dangle Earrings

Materials

Amethyst, Gold, 18k Gold, Yellow Gold

Amethyst and Yellow Gold 18k Ring (A13459n)
Located in Teófilo Otoni, MG
: Amethyst Approximate Weight of the Main Stone: 2.50 carats Has Diamonds: No Approximate Size: 2.0cm x 2.0cm
Category

21st Century and Contemporary Brazilian Fashion Rings

Materials

Amethyst, Gold, 18k Gold, Yellow Gold

Art Deco Emeralds and Diamonds White Gold Cocktail Earrings
Located in Viana do Castelo, PT
green Oval Cut Colombian Emeralds (untreated) with a total weight of 1.32 Carats, 12 small emeralds with
Category

21st Century and Contemporary Portuguese Art Deco Drop Earrings

Materials

Diamond, Emerald, White Gold, 18k Gold

12 Carat Emerald Cut Diamond Eternity Band
Located in Miami, FL
A breathtakingly beautiful diamond wedding band featuring 17 emerald cut diamonds set in platinum
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Platinum

12 Carat Emerald Cut Diamond Eternity Band
Located in Miami, FL
A breathtakingly beautiful diamond wedding band featuring 17 emerald cut diamonds set in platinum
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Platinum

Certified 12 carat Emerald Cut Diamond Eternity Band
By Royaal Stones Ltd
Located in Bangkok, Thailand
Make a statement with this stunning 1 carat each, emerald cut Diamond eternity band. The band will
Category

21st Century and Contemporary Modern Wedding Rings

Materials

Diamond, 18k Gold, White Gold

12 Carat Emerald Cut Diamond Drop Dangling Earrings in Platinum
Located in New York, NY
Emerald Cuts 5.23 and 5.28 carat each Side Diamonds: Round Cut Diamonds 0.78 and 0.72 carat each plus pave
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, Emerald, Platinum

GIA G-SI1 2.25 Carat Emerald Pie-Cut "Illusion" Diamond Wedding Ring Platinum
Located in New York, NY
carats Emerald cut Diamond solitaire. The 0.49ct center Diamond is GIA certified, G Color SI1 in clarity
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

Harry Winston GIA Graded 5.11 Carat Diamond Three-Stone Engagement Ring
By Harry Winston
Located in Miami, FL
being a 12 carat emerald cut diamond. For over 70 years Harry Winston has been regarded the jeweler for
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Harry Winston 24.17 Carat Diamond Bracelet
By Harry Winston
Located in Miami, FL
diamond, that made 12 individual stones, the largest being a 12 carat emerald cut diamond. For over 70
Category

Vintage 1950s American Modern Tennis Bracelets

Materials

Diamond, Platinum

Harry Winston 24.17 Carat Diamond Bracelet
By Harry Winston
Located in Miami, FL
diamond, that made 12 individual stones, the largest being a 12 carat emerald cut diamond. For over 70
Category

Vintage 1950s American Modern Tennis Bracelets

Materials

Diamond, Platinum

12 Carat Emerald Cut Colombian Emerald and 1.6 Carat Diamond 18 Karat Gold Ring
Located in New York, NY
Approximately 12 Carat Emerald Cut Colombian Emerald & 1.6 Ct Diamond 18 Karat White gold Ring
Category

Early 2000s Engagement Rings

Materials

Diamond, Emerald, Gold, 18k Gold

Vivid Diamonds GIA Certified 12.12 Carat Emerald Cut Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Emerald Cut diamond weighing 12.12 carats, K color, VS2 clarity. The mesmerizing center diamond is
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Platinum

12 Carat Emerald Cut Wedding Band
By Jewels By Viggi
Located in Palm Beach, FL
Shared prong wedding band set in Platinum. Sixteen Diamonds 12.13 carats total (.75 carats each
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

12 Carat Emerald Cut Wedding Band
By Jewels By Viggi
Located in Palm Beach, FL
Shared prong wedding band set in Platinum. Sixteen Diamonds 12.13 carats total (.75 carats each
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

12 Carat Oval Cut Emerald and Diamond Tennis Bracelet 14 Karat Yellow Gold 23.5G
Located in New York, NY
Approximately 12 Carat Oval Cut Emerald and 3.5 Diamond Tennis Bracelet 14 Karat Yellow Gold 23.5G
Category

2010s Tennis Bracelets

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

4.8 Carat Emerald Cut Colombian Emerald Rose Cut Diamond 18 Karat Gold Ring
Located in New York, NY
Weight: 12 gram Diamonds: approximate 4.0 Carat , all rose cut pear and Round shape diamonds are making
Category

2010s Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

10 Carat Colombian Emerald Cut Emerald Diamond Hanging /Drop Earrings 18Kt Gold
Located in New York, NY
10 Carat Colombian Emerald Cut Emerald Diamond Hanging Earrings 18 K White Gold This exquisite
Category

2010s Dangle Earrings

Materials

Diamond, Emerald, 18k Gold

Emerald Cut 13.48 Carat Gübelin Cert Zambian Emerald Diamond Ring
Located in Bal Harbour, FL
, platinum and diamond mounting. The baguette cut diamonds (12=2.50cts) were all individually cut to
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Emerald, Platinum

12, 22 carat Diamonds, 1, 82 carat Emerald, 18 Karat Yellow Gold Necklace
Located in Marcianise, Marcianise (CE)
with diamonds and, as pendant, a drop shape structure studded with diamonds and a drop emerald in the
Category

Vintage 1980s Italian Retro Drop Necklaces

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

12-Carat Emerald Diamond 18 Karat Yellow Gold Vintage Cocktail Ring
Located in Boca Raton, FL
This breathtaking 18k yellow gold ring showcases a stunning 12-carat emerald-cut emerald as its
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Vintage 3.5 Carat Emerald Cut Diamond Platinum Eternity Band
Located in Beverly Hills, CA
Center Stone: 12 Emerald Cut Diamonds Weight: Approximately 3.5 Carats Color: F Clarity: VS Metal
Category

1990s Band Rings

Materials

Diamond, Platinum

Fancy Cut White Diamond Eternity Band. Over 12 carats of diamonds!
By ZYDO
Located in Beverly Hills, CA
Over 12 carats of white fancy shape diamonds are set perfectly to make a stunning eternity band
Category

1990s Italian Modern Cluster Rings

Materials

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

Van Cleef Arpels Colombian Emerald 12 Carat Diamond Day Night Earrings
By Van Cleef Arpels
Located in Miami, FL
. To crown these emeralds, an ensemble of 44 round brilliant cut diamonds, with a combined weight of
Category

Vintage 1970s American Modern Dangle Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

7.29 Carat Emerald-Cut Diamond Platinum Ring
Located in New York City, NY
Very fine platinum and emerald cut diamond engagement ring. It features a GIA certified 7.29cts H
Category

20th Century American Engagement Rings

Materials

Diamond, Platinum

0.93 Carat Emerald-Cut Pink Sapphire Diamond Engagement Ring
Located in Wan Chai District, HK
This elegant ring is made of 18k white gold and diamonds, featuring an emerald-cut pink sapphire as
Category

2010s Hong Kong Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, 18k Gold, White Gold

No-Oil 9.28 Carat Hexagon Cut Colombian Emerald and Diamond Fashion Ring
By Roman Malakov
Located in New York, NY
emerald center stone surrounded by 12 pieces baguette cut diamonds and 72 brilliant round diamonds. 16
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

0.63 Carat Natural, Heart-Cut, Zambian Emerald Diamond Ring Set in Platinum
Located in Tokyo, JP
A stunning ring featuring a 0.63 Carat Natural, Heart-Shape, Zambian Emerald and 0.27 Carats of
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

18 Karat Yellow Gold 1.77 Carat Emerald Cut Diamond Engagement Ring
Located in Cape May, NJ
Era: New Composition: 18K Yellow Gold Primary Stone: Emerald Cut Diamond Stone Carat Weight
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold

Elegant 1.01ct Ideal Cut Emerald Cut Pair of Diamonds - GIA Certified
Located in רמת גן, IL
brilliance of this exquisite pair of emerald cut diamonds, totaling 1.01 carats. The elegant emerald cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

2 Carat Old European Cut Diamond Emerald Onyx Engagement Ring
Located in Santa Barbara, CA
total 18 Buff Cut Emeralds 0.90 carats total 12 Buff Cut Onyx 0.80 carats total Ring Size: 5.75, sizing
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, Onyx, Platinum

8.50 Carat Emerald Cut Aquamarine Diamond Platinum Vintage Cocktail Ring
Located in Boca Raton, FL
exquisite 8.50-carat emerald-cut aquamarine at its center. The aquamarine's pristine, light blue hue is both
Category

Late 20th Century American Modern Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

0.73 Carat Natural Diamond-Cut Emerald and Diamond Ring set in Platinum
Located in Tokyo, JP
A stunning ring featuring a 0.73 Carat Natural Vivid Green, Emerald and 0.40 Carats of Diamond
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Antique Old European Cut Diamond Emerald Ring
Located in Chicago, IL
and very clean Old European cut diamond surrounded by a halo of calibre cut emeralds. The diamond
Category

Vintage 1910s Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

0.85 Carat Natural Heart Cut Emerald and Diamond Halo Ring Set in Platinum
Located in Tokyo, JP
A stunning ring featuring a 0.85 Carat Natural Emerald and 1.23 Carats of Diamond Accents set in
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Emerald Cut and Round Diamond Necklace in Platinum
Located in Los Angeles, CA
This necklace is stunning! 35 carats of beautiful white and bright emerald cut diamonds VVS clarity
Category

21st Century and Contemporary More Necklaces

Materials

Diamond, White Diamond, Platinum

3.37 Carats Total Oval Cut Half Green Emerald Diamond Eternity Wedding Band
By Roman Malakov
Located in New York, NY
emeralds weighing 1.69 carats total and 10 brilliant oval cut diamonds weighing 1.68 carats total, set on a
Category

21st Century and Contemporary American Contemporary Wedding Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

6.86 Carat Step-Cut Emerald with Baguette Diamonds 18k White Ring
Located in Scottsdale, AZ
Diamonds: 12 baguette cuts = 1.00 carat total weight Color: H-I Clarity: VS Dimensions: ring top is 12.11mm
Category

2010s Unknown Modern Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

18 Karat White Gold Emerald Cut Aquamarine and Emerald Cut Diamonds Ring
Located in Montgomery, AL
12 Emerald Cut White Brilliant Cut Diamonds 1.50 Carats Total Weight Color: F Clarity: VS2 1 Emerald
Category

1990s Unknown Cocktail Rings

Materials

Aquamarine, Diamond, White Gold

GIA Emerald Cut 5.01 Carat Diamond East West Style Wedding Eternity Band
By Simon Ardem
Located in New York, NY
Diamond Eternity Band set in Platinum. 12 horizontal set Emerald cut diamonds are D-E-F VVS2-VS2
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Emerald, Platinum

Platinum Diamond GRS 1.76 Carat Emerald Cut Blue Sapphire Engagement Ring
Located in Los Angeles, CA
Emerald Cut Blue Sapphire, 12 Round Diamonds, 6 Marquise Diamonds F-G Color VS2 Clarity 0.46 Carats. GRS
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

4.14 Carat Oval Cut Natural Emerald and Diamond Ring in 18K Yellow Gold
By Gad Co.
Located in Miami, FL
Natural Emerald and Diamond Ring, featuring a 4.14 Carat Oval Cut Emerald Center Stone with Round
Category

20th Century North American Art Deco Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

1.61 Carat Natural Oval-Cut Emerald and Diamond Ring Set in Platinum
Located in Tokyo, JP
A stunning cocktail ring featuring a 1.61 Carat Natural Emerald and 1.30 Carats of Diamond Accents
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Art Deco 4.1 Carat Old European Cut Diamond and Emerald Engagement Ring
Located in Miami, FL
approximately .60 carats total, H color, VS clarity and 12 emerald cut emeralds weighing approximately .25
Category

Vintage 1920s Unknown Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Emerald-Cut Colombian Emerald and Diamond 18 Karat White Gold Pendant
By Gad Co.
Located in Miami, FL
Centering a 0.46 Carat Emerald-Cut Colombian Emerald, accented by 12 Round-Brilliant Cut Diamonds
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

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

Estate GIA 12.77 carats Emerald Cut Round Diamond Platinum Bracelet
Located in Miami, FL
with 12 genuine emerald cut diamonds approx. 8.40cttw, F-G color, VS1-VS2 clarity, 24 round cut
Category

Vintage 1980s Unknown Link Bracelets

Materials

Diamond, Platinum

1.05 carats Diamonds, 0.30 carats Rubies, 0.50 carats Emerald Fashion Ring
Located in MADRID, ES
diamonds, cabochon rubies, and a beautifully framed emerald in a classic period design. **IN STOCK
Category

Early 20th Century Unknown Gothic Revival Fashion Rings

Materials

Diamond, Emerald, Ruby

3.70 Carat Emerald Diamond Gold Bracelet
Located in Miami, FL
18k yellow gold bracelet featuring 12 emeralds weighing approximately 2cts total accented by 168
Category

20th Century Link Bracelets

Materials

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

Sophisticated Emerald Cut Diamond Ring
Located in San Francisco, CA
Gorgeous Engagement Ring Features a E Color, SI2 Clarity 1.56 Carat GIA Graded Emerald Cut Diamond
Category

Vintage 1950s Unknown Engagement Rings

Materials

Diamond, Platinum

15.64 Carat Zambian Tear Drop Emerald and 1.05 carat of Diamond Earrings 18 kt
By H H Jewels
Located in Miami, FL
15.64 Carat Zambian Tear Drop Emerald and 1.05 carat of Diamond Earrings 18 kt These stunning
Category

2010s Drop Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

5 Carat Heart Shape Colombian Emerald and Diamond Pendant Necklace Enhancer
Located in New York, NY
Approximately 5 Carat Heart shape Colombian Emerald and Diamond Pendant Necklace Enhancer This
Category

2010s Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

Art Deco Style Emerald Cut Emerald White Diamond White Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
Diamonds. This Ring has a 1.75 Carats Natural Zambia Emerald Cut Emerald. This Ring is inspired by Art
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

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

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12 Carat Emerald Cut Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 12 carat emerald cut diamond for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. In our selection of items, you can find a vintage example as well as a contemporary version. You’re likely to find the perfect 12 carat emerald cut diamond among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. A 12 carat emerald cut diamond from Meghna Jewels, Roman Malakov and J. Birnbach — each of whom created a beautiful version of this treasured accessory — is worth considering. See these pages for an emerald cut iteration of this accessory, while there are also mixed cut cut and rose cut cut versions available here, too. There aren’t many items for men if you’re seeking a 12 carat emerald cut diamond, as most of the options available are for women and unisex.

How Much is a 12 Carat Emerald Cut Diamond?

The price for a 12 carat emerald cut diamond starts at $1,350 and tops out at $1,300,000 with these rings, on average, selling for $27,323.

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.