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Art Deco Handmade 15 Carat Aquamarine Cocktail Dinner Ring with 12 Diamonds
Located in Sydney CBD, AU
Aquamarine and Diamond ring. Emerald cut Aquamarine 4 claw set with 10 single cut and 2 round Brilliant cuts
Category

Vintage 1940s Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Yellow Gold, Platinum

Emerald, Pink Sapphires and Diamonds Valadier Ring
Located in Rome, IT
and 0.70 round cut diamonds Italian size 12 - USA size 6 - FR size 52
Category

21st Century and Contemporary Italian Contemporary Fashion Rings

Materials

Diamond, Emerald, Pink Sapphire, 18k Gold, Rose Gold

43.08 Carat Aquamarine and Diamond Ring
Located in Atlanta, GA
18 Karat White Gold, Aquamarine and Diamond Ring • Step-cut aquamarine weighing 43.08 carats • 12
Category

Late 20th Century More Rings

Materials

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

18k Tourmaline Emerald Diamond Earring Yellow Gold
Located in Boca Raton, FL
Tourmaline Emerald Diamond Earring in 18K Yellow Gold. (2) Tourmaline stones weighing 12 carat
Category

2010s Dangle Earrings

Materials

Diamond, Emerald, Tourmaline, 18k Gold, Yellow Gold

37.82 Carat Pear Kunzites Emeralds 18 Karat Gold Drop Earrings
Located in New York, NY
Emeralds (1.18 carats), and 12 round brilliant-cut Diamonds (0.09 carats). Lever back closures.
Category

2010s Art Deco Drop Earrings

Materials

Diamond, Emerald, Kunzite, 18k Gold

Art Deco Style Diamonds Forest Green Emerald Platinum Ring
Located in Woodland Hills, CA
1.0 carats. There are 12 old mine cut diamonds and 6 rose cuts, diamonds average I color VS-2 clarity
Category

Vintage 1950s Unknown Cocktail Rings

Materials

Diamond, Emerald, Platinum

18 Karat White Gold Emerald Diamonds Ring
Located in Madrid, ES
Ring in 18 Karat white gold, centered by an emerald surrounded by 12 round brilliant cut diamonds
Category

Late 20th Century Unknown Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Emerald Colombia Diamond Cluster Ring White Gold 18Kts
Located in Valencia, Comunidad Valenciana
transparency measured 6.5x 5.3x 3.3 weight 0.80 carats. With halo of 12 Diamonds brilliant cut with a weight of
Category

2010s Spanish Modern Cluster Rings

Materials

Diamond, Emerald, White Gold, 18k Gold

1930s Ruby Emerald Diamond Gold Platinum Bird Brooch
Located in Portland, ME
18K Yellow gold and platinum emerald, diamond and ruby bird brooch. The brooch depicts 3 birds
Category

Vintage 1930s Unknown Art Deco Brooches

Materials

Diamond, Emerald, Ruby, 18k Gold

14K 9.56ctw Emerald Diamond Cocktail Ring Size 6.75 Pear Modified Brilliant
Located in Holtsville, NY
emeralds totaling 8.37 carats and 8 sparkling single cut diamonds totaling 0.03 carats. Specifications
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Emerald, 14k Gold

5.02 Carat Peridot Diamond 18 Karat Yellow Gold Ring
By DGI
Located in Los Angeles, CA
This Peridot and Diamond Ring has a Natural Emerald Cut Peridot that weighs 4.52 Carats and
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Peridot, Yellow Gold, 18k Gold

Cushion Emerald Diamond Ring
Located in New York, NY
X 9.0 Side Stone Details: - Type: Diamond - Carat: 0.1991 - Quantity: 12 - Cut: Pear Shape
Category

2010s American Fashion Rings

Materials

18k Gold

1980s Classic Vintage Emeralds and Diamonds 18 Karat Gold Ring
By Ansuini
Located in Roma, IT
carats, 1 diamond emerald cut 1 carat, 12 diamonds 0.80 carats, 2 baguette cut diamonds 0.20 carats, 2
Category

1990s Italian Retro Engagement Rings

Materials

White Diamond, Emerald, 18k Gold

Emerald and Diamond Earrings in 18 Karat White Gold
Located in New York, NY
Stunning pair of Earrings embellished with a duo of Zambian emeralds weighing 28.87 carats, with 12
Category

2010s Unknown Modern Lever-Back Earrings

Materials

White Diamond, Emerald, 18k Gold, White Gold

Ethonica Emerald and Diamond Cluster Ring in 14 Karat Gold
Located in New York, NY
The center diamond 0.60 carat brilliant round set in the 14K yellow gold ring featured by a cluster
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, Emerald, Gold

3.50CT Natural Emerald and Diamond cocktail ring 18K s-6
Located in Chicago, IL
Vintage cocktail ring most likely from 1950's. Ring prong set with One Oval Cut natural Emerald
Category

Vintage 1950s Unknown Retro Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Sapphire, Diamond and Emerald, Set in a Platinum Handcrafted Ring
Located in Nashville, TN
, Finish: Excellent, Clarity Grade: Eye Clean, Color Grade: Extra Fine. Diamonds: 12 Pear Brilliant Cut
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Emerald, Blue Sapphire, Platinum

Green Oval Emerald 0.85K Diamonds 0.12K White Gold Engagement Ring
Located in Firenze, FI
emerald. 0.85 carats oval emerald dimensions 5mmx9mmm complimented by 12 round diamonds cut brillant 0.12
Category

21st Century and Contemporary Italian Contemporary Engagement Rings

Materials

Diamond, Emerald, White Gold

David Morris Emerald Diamond Brooch and Earrings Set in Original Packaging
By David Morris
Located in London, GB
marquise-cut emeralds and 12 carats of diamonds (F/G, VS) in both marquise and round brilliant cuts. The
Category

Vintage 1960s British Modern Brooches

Materials

Diamond, Emerald, 18k Gold

Burdeen s Glorious Three Stone Emerald Diamond Platinum Engagement Ring
By Burdeen s Jewelry
Located in Buffalo Grove, IL
Diamond Ring has a Center Emerald Cut Diamond (5.69 ctw) which is GIA Certified, F in color, & SI1 Clarity
Category

21st Century and Contemporary American Engagement Rings

Materials

White Diamond, Platinum

Topaz and Diamond Cocktail Ring 6 Carat, 14k
Located in Mammoth Lakes, CA
Topaz and Diamond Cocktail Ring 6 Carat 14K • One Emerald Cut Aquamarine Emerald Cut Blue Topaz
Category

Vintage 1970s North American Modern Cocktail Rings

Materials

Diamond, Topaz, 14k Gold

2.83 Carat Green Tourmaline Diamond 14 Karat Yellow Gold Engagement Ring
By DGI
Located in Los Angeles, CA
Carats and has 20 Round Cut Diamonds weighing 0.31 Carats. The total carat weight of the ring is 2.83
Category

21st Century and Contemporary American Contemporary Bridal Rings

Materials

Diamond, Tourmaline, 14k Gold, Yellow Gold

5.98 Carat Peridot Pink Sapphire Diamond 18 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a 4.98 Carat Emerald Cut Peridot and 24 Pink Sapphires that weigh 0.86 Carats and 12
Category

2010s American Contemporary Cocktail Rings

Materials

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

Miss Victoria Emerald Green Luxury Diamond Watch for Women, 18 Karat Yellow Gold
By Backes Strauss
Located in LONDON, GB
leather strap Buckle: 24 white diamonds, 0.22cts and 12 green emeralds Hands: Sword-shaped hands Display
Category

2010s Swiss Wrist Watches

Materials

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

Natural AA Emerald and Diamond Round Halo Ring 14 Karat Yellow Gold Ring
Located in Preston, Lancashire
carats Birthstone: May Diamonds: 20 x round brilliant cuts, 0.015 each Quality: SI, H Content: Approx
Category

2010s British Art Deco Engagement Rings

Materials

Diamond, Emerald, Yellow Gold

Certified 1.09 Carat Padparadscha Orange Sapphire 0.39 Diamond 18Karat Gold Ring
By Berquin
Located in Brussel, BE
"! This unheated Padparadscha has ben set together with an Antwerp Radiant cut Diamond of 0,39 carat, VS2
Category

2010s Belgian Contemporary Band Rings

Materials

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

Fashion Rose Cut Ruby 0.40 Heart Earrings in 18 Carat Rose Gold and Diamonds
Located in Valenza, IT
diamonds. The Hoop size is 12 mm external and the total lenght is 20 mm. Classic, sophisticated, fashion
Category

21st Century and Contemporary Italian Contemporary Hoop Earrings

Materials

Ruby, 18k Gold

13.80 Carat CITRINE Malachite Diamonds Yellow Gold Hoops
Located in Miami, FL
. Citrines Emerald Cut Shape 13.80 carat Diamonds & Malachite Size: 45 mm (1.77 inches) Also available in
Category

21st Century and Contemporary French Art Deco Dangle Earrings

Materials

Citrine, Diamond, Malachite, Yellow Gold, 18k Gold

Antique, Edwardian, 18 Carat Gold, Tourmaline and Diamond Ring
Located in Rochford, Essex
within a simple millegrained border of antique circular-cut diamonds, this ring presents an opportunity
Category

Early 20th Century British Cocktail Rings

Materials

Diamond, Tourmaline

Midcentury 2.25 Carat Blue Sapphire and Diamond Cocktail Ring
Located in Metairie, LA
halo style setting, is a magnificent deep blue authentic emerald-cut blue sapphire approximating 1.25ct
Category

Mid-20th Century Unknown Late Victorian Cocktail Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

Rose Gold 18 Karat 4.20 Carat Purple Amethyst and Diamond Necklace
Located in Rome, IT
arranged in a triangle at the top. The pendant contains: - 1 amethyst, emerald cut, dimensions 12 mm x 9 mm
Category

2010s Italian Modern Pendant Necklaces

Materials

Amethyst, Diamond, Gold, 18k Gold, Rose Gold

21st Century 9 Karat Rose Gold Emerald and Diamond Oval Cesellato Cocktail Ring
By FANCS V by Simona Elia
Located in Palermo, Italy PA
Understated and elegant, and yet 600-odd years in the making. A half-carat emerald and a double
Category

Antique 16th Century Italian Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold, 9k Gold, Rose Gold, Silver

38.45 Carat SKY BLUE TOPAZ Moonstones Diamonds Rose Gold Hoops
Located in Miami, FL
38.45 Carat Sky Blue Topaz, Moonstones and Diamonds in 18 Karat Rose Gold Earrings. HAND CARVED
Category

21st Century and Contemporary French Drop Earrings

Materials

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

18 carat yellow gold diamond and semi-precious stones ring
Located in Monte-Carlo, MC
18 carat white gold ring designed with 20 round brillant cut diamonds weighing 0.10 carat, 12 semi
Category

2010s Cocktail Rings

Materials

Diamond, Yellow Gold

Yellow Gold Opal Emerald Wedding band Half Eternity Vintage Opal Wedding Band
Located in Orlando, Florida
: Emerald ↣ Shape: Square Faceted ↣ Treatment: Oiled ↣ Dimensions: 3.00 mm x 3.00 mm SIDE DIAMONDS
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Emerald, Opal, 18k Gold, Yellow Gold, Gold

Platinum 4 Carat Pink Sapphire and Diamond Vintage Cocktail Ring
Located in New York, NY
Weight: 12 Grams Diamond Carat Weight: Diamond color: I-J Diamond Clarity: VS1-VS2 Diamond Cut: Marquise
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Certified Late Art Deco 1.40 Carat Natural Pink Sapphire and Diamond PT Ring
Located in Napoli, IT
(7.6 mm. x 6.4 mm.) - 2 baguette and 12 early transitional brilliant cut diamonds totalling approx 1.04
Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Platinum

12.75 Carat Large Tanzanite Cabochon Ring in 18 Karat Rose Gold and Diamonds
Located in Los Angeles, CA
cabochon weighing over 12 carats sits at the center of this stunning cocktail ring. Crafted in 18 karat
Category

Vintage 1970s American Modern Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold, Rose Gold

Chain Necklace Yellow Gold Emerald
Located in PARIS, FR
in the center of an emerald cut into the heart of approximately 2.60 carats (slightly diamond dust
Category

20th Century French Chain Necklaces

Materials

Yellow Gold

Art Deco, 18 Carat White Gold Rare Natural Purple Sapphire and Diamond Ring
Located in Rochford, Essex
heat treatment, it sits between a beautifully matched pair of early 20th century circular-cut diamonds
Category

Early 20th Century British Engagement Rings

Materials

Diamond, Sapphire, White Gold

Blue Topaz Blue Sapphire Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a Emerald Cut Blue Topaz that weighs 5.65 carats and 14 Blue Sapphires that weigh
Category

2010s American Contemporary Cluster Rings

Materials

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

Yellow Gold 18k Purple Amethyst and Diamond Earrings
Located in Rome, IT
earrings contain: - 2 amethysts, emerald cut, deep purple color, dimensions 12 mm x 10 mm, total carats 7.2
Category

2010s Italian Modern More Earrings

Materials

Amethyst, Diamond, Yellow Gold

Pink Rainbow Sapphire Diamond Garnet Platinum Cocktail Ring
By Antoinette Bracks
Located in Brisbane, QLD
DIAMOND WEIGHT 0.66 carat Sapphires and Garnets: 1 = 6.72x4.24x2.83mm faceted emerald cut sapphire of a
Category

2010s Australian Modern Cocktail Rings

Materials

Diamond, Garnet, Sapphire, Platinum

18 Karat White Gold Purple Rectangular Amethyst and Diamond Earrings
Located in Rome, IT
Italian craftsman, and contain: - 2 emerald cut amethysts, dimensions 12 mm x 9 mm, total carats 14.0
Category

2010s Italian Modern More Earrings

Materials

Amethyst, Diamond, White Gold

Art Nouveau Aquamarine and Diamond Ring
Located in DALLAS, TX
14k rose gold Art Nouveau estate ring with approximately 12 carat aquamarine and .36 carat total
Category

Early 20th Century Art Nouveau Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, Rose Gold

Platinum and Ruby Diamond Engagement or Dress Ring
Located in Splitter s Creek, NSW
quality Ruby of purplish-red tone, clarity very eye-clean, Emerald cut, 4 claw set. It centres 12 high
Category

2010s Unknown Modern Engagement Rings

Materials

Diamond, Ruby, Platinum

Spectacular Colored Stone Pearl Diamond gold Cocktail Ring
Located in New York, NY
, heavily sprinkled with diamonds (17 white circular-cut stones weighing approximately 3 carats total), then
Category

Vintage 1960s American Cocktail Rings

Materials

Cultured Pearl, Diamond, Emerald, Ruby, Sapphire, 14k Gold, White Gold

Greek Designed Diamond and Multi Gemstone 18K Drop Earrings
Located in Fuquay Varina, NC
Diamond Color: G-H Gemstone Type: Emerald, Ruby, Blue Sapphire Total Gemstones: 12 Carat Total Weight
Category

Late 20th Century Greek Drop Earrings

Materials

Diamond, Emerald, Multi-gemstone, Ruby, Blue Sapphire, 18k Gold, Yellow ...

TIGER EYES Diamonds Yellow Gold Earrings
Located in Miami, FL
. Tiger Eyes cut in emerald shapes. Diamonds: 0.16ct Size: 11.5 cm (4.5 inches) The Item comes with a
Category

21st Century and Contemporary French Art Deco Chandelier Earrings

Materials

Diamond, Tiger s Eye, Yellow Gold, 18k Gold

Certified Natural Fancy Intense Australian Argyle Yellow and Pink Diamond Ring
Located in Sydney, NSW
"Celestia" is a unique Australian Argyle yellow diamond, polished from a 6.20ct carat rough crystal
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, 18k Gold, Platinum

Ico the Bird Spessartite, Morganite, Peridot, Diamond, Pearl Gold Earring
By Ico the Bird Fine Jewelry
Located in Los Angeles, CA
Peridot: 2.06 carats Diamond: .12 carats Akoya Pearls: 4mm & 8mm According to legend, Noah used a finely
Category

2010s American Contemporary Drop Earrings

Materials

Citrine, Diamond, Morganite, Pearl, Peridot, 18k Gold

AMETHYST Black Jade Diamonds Rose Gold Necklace
Located in Miami, FL
AMETHYST Black Jade Diamonds Pink in 18 Carat Rose Gold Long Necklace 120 cm (47.2 inches). HAND
Category

21st Century and Contemporary French Art Deco Rope Necklaces

Materials

Amethyst, Diamond, Black Jade, Jade, Gold, 18k Gold, Rose Gold

Ico the Bird Spessartite, Morganite, Peridot, Diamond, Pearl 18k Gold Earring
By Ico the Bird Fine Jewelry
Located in Los Angeles, CA
Peridot: 2.06 carats Diamond: .12 carats Akoya Pearls: 4mm & 8mm According to legend, Noah used a finely
Category

2010s American Contemporary Drop Earrings

Materials

Citrine, Diamond, Morganite, Pearl, Peridot, 18k Gold

Vintage Tiffany Co. / Diamond Pearl Frog Set
By Tiffany Co.
Located in London, GB
diamonds with approximate total weight of 2.50 - 3.50 carats Emeralds: 2 round cabochon emeralds Cultured
Category

Late 20th Century Unknown Art Deco Lever-Back Earrings

Materials

Diamond, Pearl, Platinum

Marcel Salloum 9.7 Ct Green Tourmaline Diamond Three Stone Ring in 18 Kt Gold
By Marcel Salloum
Located in London, London
for a lifetime. Centre Stone: 9.70 Carat Emerald Cut Green Tourmaline Side Diamond Weight: 0.63
Category

2010s British Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, 18k Gold, White Gold

Frederic Sage 4.83 Aquamarine 2.50 Green Tourmaline Cocktail Ring
By Frederic Sage
Located in New York, NY
4.83 CARATS 2 GREEN TOURMALINES 2.50 CARATS AND 12 DIAMONDS 0.18 CT
Category

2010s American Contemporary Fashion Rings

Materials

Aquamarine, Tourmaline, 18k Gold, White Gold

Art Deco Style Amethyst Earrings
Located in METAIRIE, LA
Sections containing 12 Single cut Diamonds totaling approximately 0.32 carats & 2 Baguette cut Diamonds
Category

Vintage 1980s Drop Earrings

Materials

Amethyst, Diamond, 14k Gold, White Gold, Platinum

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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.