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0.30ctw Large Black Onyx Diamond Signet Ring, 14k Yellow Gold, Ring
Located in McLeansville, NC
cut tablet - 16 x 12 mm - diamonds, 30 stones - round brilliant cut - 1.3 - 1.4 mm - approximately
Category

Vintage 1980s Signet Rings

Materials

Diamond, Onyx, 14k Gold, Yellow Gold

New Brazilian IF 14 Carat Purple Blue Amethyst Yellow Gold Plated Ring
Located in Eagan, MN
cts. The stone measures 17.5 x 12 mm. It has diamond cut White Sapphires on each side of the band
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Amethyst, Sapphire, Gold Plate, Yellow Gold, Silver, Sterling Silver

1950s Diamond Gemstone 14 Karat Yellow Gold Slide Charm Estate Bracelet
Located in Boca Raton, FL
12 round brilliant cut diamonds throughout weighing .50 carat total weight, as well as amethyst
Category

Mid-20th Century Unknown Modern Charm Bracelets

Materials

Amethyst, Diamond, Emerald, Opal, Ruby, Blue Sapphire, 14k Gold, Yellow ...

Mens Large Carved Lion Head Ring with Diamonds Gemstones 18 Karat Yellow Gold
Located in Scottsdale, AZ
value. Metal: 18 Karat Yellow Gold Gemstones: Ruby, Emerald, & Diamonds Emerald Cut: Round Emerald
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Diamond, Emerald, Ruby, Gold, 18k Gold, Yellow Gold

Ring with Aquamarine, Rubies Diamonds in 18 Karat White Gold by Gübelin
By Gubelin
Located in Lucerne, CH
with 12 brilliant-cut 8/8 diamonds, amounting to 0.28 carats. Meticulously crafted in 18 Karat white
Category

20th Century Swiss Art Deco Cocktail Rings

Materials

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

Blue Sapphire and Diamond Art Deco Style Drop Earrings in 14K Yellow Gold
Located in Bangkok, TH
: Emerald Cut Size: 3.5 x 3.5 mm. Number: 2 Weight: 0.75 Carat (approx. total weight) Accent Gemstones I
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

Swiss Blue Topaz and Diamond Halo Art Deco Style Pendant in 14K White Gold
Located in Bangkok, TH
brilliant cut diamonds, each with a 1.1 - 3 mm. with total of 31 diamonds. The diamond are of excellent
Category

21st Century and Contemporary Thai Art Deco Pendant Necklaces

Materials

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

Bochic “Orient” Ruby, Blue Topaz Diamond Brooch or Pendent Set In 18K Gold &
By Bochic
Located in New York, NY
Natural Ruby - 12 carat Natural Diamonds - 1 carat Natural Blue Topaz - 10,00 carat Natural Emeralds
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Diamond, Ruby, Topaz, Blue Topaz, 18k Gold, Silver

Bochic “Orient” Ruby, Blue Topaz Diamond Brooch or Pendent Set In 18K Gold &
By Bochic
Located in New York, NY
Natural Ruby - 12 carat Natural Diamonds - 1 carat Natural Blue Topaz - 10,00 carat Natural Emeralds
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Diamond, Ruby, Topaz, Blue Topaz, 18k Gold, Silver

Bochic “Orient” Ruby, Blue Topaz Diamond Brooch or Pendent Set In 18K Gold &
By Bochic
Located in New York, NY
Natural Ruby - 12 carat Natural Diamonds - 1 carat Natural Blue Topaz - 10,00 carat Natural Emeralds
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Diamond, Ruby, Topaz, Blue Topaz, 18k Gold, Silver

Pink Kunzite Orange Sapphire and Diamond Art Deco Style Halo Ring in White Gold
Located in Bangkok, TH
Type: Pink Kunzite Shape: Emerald Cut Size: 10 x 8 mm. Number: 1 Weight: 4.50 Carat (approx.) Accent
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Kunzite, Sapphire, 14k Gold, White Gold, 18k Gold, Rose Gold, Y...

New African If 8.2 Carat Raspberry Tourmaline Red Ruby Sterling Ring
Located in Eagan, MN
cts. It measures 12 x 9.7 mm. It is flanked by diamond cut red ruby stones. Sure to get noticed
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Pink Sapphire, Tourmaline, Silver, Sterling Silver

AJD Dazzling Natural 9 Ct. Blue Topaz Brilliant Diamond White Gold Ring
By Aria Jewelry Design
Located in Raleigh, NC
Glittering brilliant emerald cut huge Brasilian 9 Carat blue Topaz - 14.2 mm x 12 mm - enhanced
Category

21st Century and Contemporary American Cocktail Rings

Materials

Topaz, Diamond, Blue Topaz, 10k Gold, White Gold

18 Karat Gold Iolite Peridot Tapered Baguette Diamond Dangling Drop Earrings
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
earrings features a diamond studded pear shaped top and a suspended pear shape with 7.72 carats of high
Category

2010s Indian Contemporary Dangle Earrings

Materials

Diamond, Iolite, Peridot, Gold, 18k Gold, Yellow Gold

18K Gold Channel Demantoid Tsavorite Baguette Diamond Art Deco Style Ear-Clips
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Gemstones: 12 – 2.54 cts • Diamonds: (Brilliant Cut, Certified): 36 - 0.46cts • Metal: 18K Gold, BIS
Category

21st Century and Contemporary Indian Art Deco Stud Earrings

Materials

Diamond, Tsavorite, Gold, 18k Gold, Yellow Gold

1930s Swedish Art Deco 2ct tourmaline ring
Located in Malmö, Skåne län
mm, flanked by 2 x 0,02ct old cut diamonds and an additional 12 rose cut diamonds. Signed Hugo
Category

Vintage 1930s Swedish Art Deco Cocktail Rings

Materials

Diamond, Tourmaline, 18k Gold, White Gold

GIA Australian Opal Platinum Solid Diamond 14K Vintage Pendant Natural 17.91 Cts
Located in Sylvania, GA
LOTS OF RED FIRE CROWNED WITH 3.03 CARATS SPARKLING VS WHITE DIAMONDS. REGAL AND IMPRESSIVE
Category

20th Century Pendant Necklaces

Materials

Diamond, Opal, Gold, 14k Gold, White Gold, Platinum

Set in 18 Karat White Gold, GRS Certified Pink and Yellow Sapphire 3-Stone Ring
Located in Hong Kong, HK
sapphire is 2.75 carats, and yellow sapphire is 1.57 carats. The total weight of diamonds is 0.38 carats
Category

2010s Hong Kong Classical Roman Three-Stone Rings

Materials

Diamond, Pink Sapphire, Yellow Sapphire, 18k Gold

New African IF 9.10 Blue Purple Spinel Sapphire Rose Gold Sterling Ring
Located in Eagan, MN
measures 15.3 x 12 mm and is surrounded with diamond cut Pink and White Sapphire stones. A great design
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Spinel, Sapphire, Yellow Gold, Silver, Sterling Silver, Rose Gold

Emerald Cut and Pear Shape Ruby and Diamond Platinum and 18k Earrings
By David Gross Group
Located in New York, NY
5.67 carats of emerald cut (10) and pear shape (2) red rubies (no heat) with emerald cut diamonds
Category

2010s American Contemporary Dangle Earrings

Materials

White Diamond, Ruby, Yellow Gold, Platinum

Emerald Diamond Platinum Drop Earrings
Located in Sarasota, FL
Platinum Earrings with 6 pear shape Emeralds weighing 6.11 carats and 12 marquis cut and 6 round
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Emerald, Platinum

Tiffany Co. Yellow Gold Diamond Emerald and Enamel Cufflinks
By Tiffany Co.
Located in New York, NY
shape of a lion's head, the majestic mane of each lion is set with 12 round brilliant cut diamonds
Category

Vintage 1980s Cufflinks

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Emerald Cut Diamond Platinum Eternity Band, over 12 Carat
By Lester Lampert
Located in Chicago, IL
A beautifully made eternity band is set in platinum with 16 Emerald cut Diamonds = 12.16cts. tw
Category

Early 2000s American Contemporary Wedding Rings

Materials

Diamond, Platinum

12 Carat Fancy Intense Pink Diamond Cocktail Ring with Emerald Cut GIA
Located in Carmel By The Sea, CA
This unparalleled ring showcasing a stunning Emerald Cut 12-carat pink diamond with desirable
Category

2010s North American Modern Cocktail Rings

Materials

White Diamond, Pink Diamond, Emerald, 14k Gold

12 Carat Emerald and Diamond Earrings
Located in San Francisco, CA
baguettes. The emeralds are suspended from a pair of half-carat each European-cut diamonds. All in platinum
Category

Early 20th Century Art Deco Drop Earrings

Materials

Diamond, Emerald, Platinum

12 Carat Yellow Sapphire Emerald Cut Three-Stone Halo Cocktail Ring
Located in Aliso Viejo, CA
stone is accented by two step cut diamonds and exhibit a color and clarity of G-H VS. The side stones
Category

Early 2000s American Modern Cocktail Rings

Materials

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

1.00 Carat GIA Certified Emerald Cut Solitaire Diamond Engagement Ring SI1/E
Located in Gainesville, FL
beautiful 1.00 carat emerald cut solitaire diamond engagement ring. This diamond is certified by GIA
Category

2010s Unknown Contemporary Engagement Rings

Materials

White Diamond, 14k Gold, White Gold

Gleamire 12 Carat Certified Natural Diamond Green Emerald 14k White Gold Necklac
By GLEAMIRE
Located in Los Angeles, CA
of 2.55-Carats in G-H Color and VS Clarity combined with 3 Stones of Green Emerald with a total of
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

19.58 Carat Emerald Cut Aquamarine Ring
Located in Chestnut Hill, MA
set with 12 round brilliant cut diamonds having a total weight of approximately 1.75 carats.
Category

21st Century and Contemporary Modern Fashion Rings

Materials

Aquamarine, White Diamond, Platinum

Contemporary 12 Carat Yellow Gold Pearl Emerald and Diamond Cluster Dress Ring
Located in Hamilton, AU
. The three round brilliant cut diamonds are estimated to weigh 0.05 carats, are K to L colour and P2
Category

21st Century and Contemporary Unknown Contemporary Cluster Rings

Materials

Pearl, Diamond, Emerald, Gold, Yellow Gold

12 Carat Aquamarine Diamond Pendant
Located in Lake Forest, IL
A beautiful 12 carat blue Aquamarine gem set with 5 round brilliant cut diamonds in 14 karat white
Category

20th Century Unknown Pendant Necklaces

Materials

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

18 Karat White Gold Emerald Cut Natural Aquamarine and Diamond Ring
Located in Great Neck, NY
18k White Gold Emerald Cut Natural Aquamarine and Diamond Ring 6.66 carats of Natural Aquamarine
Category

2010s American Contemporary Fashion Rings

Materials

Aquamarine, Diamond

.56 Carat Emerald Diamond White Gold Pendant
Located in DALLAS, TX
14 k white gold pendant with 1= approximately .56 carat weight oval cut emerald and 12= 2.1mm
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

Handcrafted Caroline Emerald Cut Diamond Ring by Single Stone
By Single Stone
Located in Los Angeles, CA
1.65ct L/VVS2 GIA certified Emerald cut diamond with 0.33ctw Baguette cut accent diamonds prong set
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Handcrafted Caroline Emerald Cut Diamond Ring by Single Stone
By Single Stone
Located in Los Angeles, CA
3.02ct K/VVS2 GIA certified Emerald cut diamond with 0.94ctw baguette cut accent diamonds set in a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Handcrafted Caroline Emerald Cut Diamond Ring by Single Stone
By Single Stone
Located in Los Angeles, CA
1.50ct N/VS2 GIA certified Emerald cut diamond with 0.50ctw Baguette cut accent diamonds set in a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

GVS 0.77 Carat Illusion Emerald-Cut Diamond Clip-On Earrings 18 Karat White Gold
By Héritage Jewelry
Located in Istanbul, TR
A wonderful Illusion Emerald-Cut Diamond Earrings, set with 12 Baguettes Diamonds weighing 0.68
Category

2010s French Contemporary Clip-on Earrings

Materials

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

14 carat white gold ring - 0.16 carat emerald and 0.72 carat diamonds
Located in Monte-Carlo, MC
14 carat white gold ring designed with 1 round emerald weighing 0.16 carat and 12 round brillant
Category

2010s Cocktail Rings

Materials

Diamond, Emerald, 14k Gold

Handcrafted Rae Emerald Cut Diamond Ring by Single Stone
By Single Stone
Located in Los Angeles, CA
2.00ct L/VS1 GIA certified diamond bezel set in a handcrafted 18K yellow gold mounting. Ring is
Category

21st Century and Contemporary American Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Classic Mid Century .94 Carat Emerald Diamond Ring
Located in Los Angeles, CA
certified Old European cut diamond graded K color and VS1 clarity. The talon-prong center diamond is flanked
Category

Vintage 1950s Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

12 Carat Aquamarine Diamond White Gold Ring
Located in Lake Forest, IL
is an estimated 12 carats and measures 15.68 by 13.92 by 8.93mm. There are 28 step cut diamonds that
Category

20th Century Cocktail Rings

Materials

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

0.51 Carat Natural Zambian Emerald Gold Ring with Diamonds
Located in Tucson, AZ
this beautiful Emerald in a 14-karat white gold ring with 12 Diamonds weighing 0.36 carats, the quality
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Diamond Emerald Ring Halo White Yellow Gold 18 Karat 5.48 Carat Emerald
Located in Boca Raton, FL
Ring has (12) Round Brilliant Cut Diamonds 1.00ctw, G-H in Color, VS in Clarity and is a size 6. This
Category

21st Century and Contemporary Unknown Modern Fashion Rings

Materials

Diamond, Emerald, 18k Gold

Emerald Diamond 18 Carat White Gold Cocktail Ring
Located in Berlin, DE
elegant bordure consisting of 12 brilliant-cut diamonds weighing 0,83 ct. Workmanship in 18 K white gold
Category

Mid-20th Century Italian Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Natural 2.20 Carat Emerald and 2.00 Carat Diamond 18 Carat Gold Cluster Ring
Located in St Helens, GB
emerald to measuring 6.0mm x 7.6mm. Surrounding the emeralds are 12 round brilliant cut diamonds to form
Category

20th Century British Contemporary Cluster Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Large Emerald and 2.00 Carat Diamond 18 Carat Gold Cluster Halo Ring
Located in St Helens, GB
with a large natural oval cut emerald to the centre in four claw setting. 9.5mm x 12.. approx
Category

21st Century and Contemporary Unknown Retro Cluster Rings

Materials

Diamond, Emerald, 18k Gold

14K Emerald Diamond Pendant Necklace 0.10 Carat Round Modified Brilliant
Located in Holtsville, NY
0.10-carat round modified brilliant emerald surrounded by 12 near-colorless single-cut diamonds. This
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold

Estate Antique Art Deco Platinum 7.57 Carat Diamond and Emerald Dangle Earrings
Located in Houston, TX
Deco Platinum 7.57 CTW Diamond & Emerald Dangle Earrings Two Octagonal Step Cut Natural Colombian
Category

Vintage 1920s Art Deco Dangle Earrings

Materials

Diamond, Emerald, Platinum

Ruser Emerald Diamond Platinum Ring
By William Ruser
Located in Atlanta, GA
A platinum, emerald and diamond ring by Ruser, set in the center with an emerald-cut emerald
Category

20th Century Unknown Cocktail Rings

Materials

Diamond, Emerald, Platinum

Emerald and Diamond Cluster Ring in 18 Carat Gold
Located in Yorkshire, West Yorkshire
Emerald in a 18ct Gold rub over collar setting surrounded by 12 modern brilliant cut Diamonds totaling in
Category

Late 20th Century British Cluster Rings

Materials

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

Vintage .85 Carat Colombian Emerald .60 Carat G VVS Diamond Sheer Quality Ring
Located in Napoli, IT
: assay and maker Gems: 1 emerald cut natural emerald of approx .85 Ct (5.92 mm. x 4.68 mm.) - 10 tapered
Category

Vintage 1950s Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

1.02 Carat Diamond and Calibre Emerald Art Deco Engagement Ring
Located in San Francisco, CA
Diamonds 12 European Cut Diamonds Diamond Total Carat Weight: 0.33 carats Diamond Clarity
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

Art Deco Emerald Cut Sapphires with Diamonds Platinum Flexible Link Bracelet
Located in New York, NY
One Ladies Flexible Platinum Link Bracelet Designed With {12} Emerald Cut Ceylon Color Sapphires
Category

Vintage 1930s American Link Bracelets

Materials

Diamond, Blue Sapphire, Platinum

7.8 Carat Zambian Emerald Diamond 18 Karat White Gold Earrings
By D and A Style
Located in Singapore, SG
: Central stone - Emeralds - Intense Green color, origin Zambia, octagon shape, emerald cut, 7,83 carat
Category

21st Century and Contemporary Armenian Modern Drop Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold, Gold, 14k Gold, Yellow Gold

Huge Emerald and Diamond 14 Carat White Gold Cluster Cocktail Ring
Located in St Helens, GB
vivid emerald. Surrounding the emerald are 12 round brilliant cut diamonds, 2 princess cut diamonds and
Category

20th Century American Art Deco Cluster Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Art Deco Diamond Emerald Bracelet 18 Carat Gold, circa 1920
Located in Lancaster, Lancashire
A stunning Art Deco bracelet C. 1920, featuring a fabulous front gallery with an old cut Diamond
Category

Vintage 1920s British Art Deco Chain Bracelets

Materials

Diamond, Emerald, 18k Gold

Emerald Diamond Antique Brooch
Located in Berlin, DE
12 oval- and step-cut columbia emeralds weighing 3,40 carats, 64 brillant-cut diamonds weighing
Category

20th Century Brooches

Materials

Diamond, Emerald, 18k 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.