Skip to main content

12 Carat Emerald Cut Diamond

to
199
1,000
245
969
509
344
181
156
100
42
42
37
34
33
33
31
31
30
22
11
8
7
6
5
4
3
3
2
2
1
1
1
1
53
19
18
16
12
Sort By
Emerald and Diamond Quatrefoil Cluster Ring 18 Karat White Gold
By Michael Rose
Located in London, GB
sparkling round brilliant cut diamonds and finished with a centrally set square cut emerald. Wonderfully
Category

2010s European Modern Cluster Rings

Materials

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

10.17 Carat Sapphire and Diamond Three-Stone Ring
Located in Miami, FL
12 round brilliant cut diamonds weighing approximately .36 carats total, G color, VS clarity. The
Category

21st Century and Contemporary Unknown Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

European Cut Diamond and Platinum Bracelet
Located in New York, NY
Very fine Platinum art deco diamond bracelet Diamond Weight: European Brilliant 12 Carat 2
Category

Antique Early 19th Century Art Deco Chain Bracelets

Materials

Diamond, Platinum

Natural Emerald Pendant and Diamond Halo in 18k Solid White Gold
Located in Miami, FL
. This pendant features 12 round brilliant cut diamond side adornments to create a charming floral
Category

2010s American Art Deco Pendant Necklaces

Materials

Diamond, Emerald, White Gold

Exquisite 2.92ct Emeralds and Diamonds Drop Necklace in 18k White Gold
Located in רמת גן, IL
emeralds are 12 dazzling round diamonds totaling 0.52ct ensuring unmatched brilliance. Certified by IGI
Category

2010s Israeli Drop Necklaces

Materials

Diamond, Emerald, 18k Gold, White Gold

Antique 18k Yellow Gold Silver Diamond and Colombian Emerald Earrings
Located in New York, NY
of 1.25 carats in old European-cut diamonds, perfectly paired with 0.72 carats of rich Colombian
Category

Antique 19th Century Drop Earrings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold, Silver

Antique Ruby, Emerald and Diamond Dragon Brooch in 14k Gold
Located in Jesmond, Newcastle Upon Tyne
A stunning antique 1920's 0.52 carat ruby and 0.01 carat emerald, 2.43 carat diamond and 14 karat
Category

Vintage 1920s Brooches

Materials

Diamond, Emerald, Ruby, Gold, 14k Gold, Yellow Gold

Vintage Tiffany Co. Platinum AGL Pear Emerald Baguette Diamond Ballerina Ring
By Tiffany Co.
Located in Montclair, NJ
You are looking at a truly unique and breathtaking, AGL certified, genuine emerald and diamond
Category

Vintage 1980s Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

18 Karat Gold Ladies Ring with Large Natural Columbian Emerald and Diamonds
Located in Braintree, GB
: 11 grams total Emerald - Cut: Square Approx Size: 6 Carats Treatments: Natural Diamonds - Cut
Category

1990s British Cluster Rings

Materials

Diamond, Emerald, 18k Gold

1.25ctw Emerald Diamond Cluster Flower Ring 14k Yellow Gold Size 12.75
Located in McLeansville, NC
Gemstone Information: - Natural Emeralds - Total Carats - 1.20ctw Cut - Round Brilliant Color
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Exquisite 16.72ct Emeralds and Diamonds Bracelet in 18k White Gold - IGI Cert
Located in רמת גן, IL
elegance and sophistication. Complementing the emeralds are 242 single-cut diamonds totaling 2.80-carat
Category

2010s Israeli Link Bracelets

Materials

Diamond, Emerald, 18k Gold, White Gold

Jahan Yellow Sapphires Brilliant Cut Diamonds Dandelion Flower Cocktail Ring
By Jahan
Located in London, GB
Stones: 1 Yellow Sapphire - Cut: Emerald cut - Carat: 3.20ct approximately Others: 8 pear shaped
Category

21st Century and Contemporary Swiss Modern Cocktail Rings

Materials

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

Natural Emerald and Diamond Bangle Bracelet in Textured 14k Yellow Gold
Located in La Jolla, CA
Bracelet features 12 Cabochon Emeralds and 24 Round Brilliant cut Diamonds bezel set on top half of
Category

21st Century and Contemporary North American Bangles

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Natural Emerald and Diamond Bypass Design Ring in 14K Yellow Gold
Located in Towson, MD
emeralds and twelve (12) round brilliant cut diamonds, approximately 0.20-carat total weight with matching
Category

Vintage 1970s Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Vintage Art Deco Jabot Pin Platinum Diamond Emerald Initials EC Brooch Jewelry
Located in Torrance, CA
. 34 single cut diamonds total an estimated 0.17 carats (estimated at H-I color and SI2-I2 clarity). 12
Category

Early 20th Century Unknown Art Deco Brooches

Materials

Diamond, White Diamond, Emerald, Platinum

Natural 7.90 Carat Kunzite 0.27 Carat Diamond 18-Karat Ring In Stock
Located in Boca Raton, FL
0.27 carats of Round Brilliant cut diamonds in the mounting also (12 stones) Diamond Clarity: Diamonds
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Kunzite, Diamond, Rose Gold, 18k Gold, Gold

Vintage Emerald Diamond Earrings Cluster 18 Karat White Gold Estate Fine Jewelry
Located in Torrance, CA
white gold. 12 faceted pear cut emeralds are estimated at 0.50 carats each and total an estimated 6
Category

Mid-20th Century Unknown Drop Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

1950s French 18 carat gold aquamarine and diamond bracelet
Located in London, GB
bracelet is a part of a set which includes a brooch made from one 12 carat emerald cut aquamarine and
Category

Vintage 1950s French Modern Link Bracelets

Materials

Aquamarine, Diamond, 18k Gold

Vintage F. Moroni 18k Gold 2.35ct GIA Emerald Diamond Wide Cocktail Band Ring
Located in Montclair, NJ
Genuine Diamonds - Round Brilliant Cut - Prong Set - G/H Color - VS1/VS2 Clarity - 0.45ctw (approx.) (12
Category

Late 20th Century Italian Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Vintage F. Moroni 18k Gold 2.35ct GIA Emerald Diamond Wide Cocktail Band Ring
Located in Montclair, NJ
- Prong Set - G/H Color - VS1/VS2 Clarity - 0.45ctw (approx.) (12) Natural Genuine Diamonds - Baguette Cut
Category

Late 20th Century Italian Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Vintage Diamond Emerald Ring 18 Karat Yellow Gold Estate Fine Jewelry Band
Located in Torrance, CA
Finely detailed vintage emerald & diamond band, crafted in 18 karat yellow gold. 24 full cut
Category

Mid-20th Century Unknown Band Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Set 18K Gold, 7.85cts Zambian Emerald and Baguette Diamond classic Cocktail Ring
Located in Hong Kong, HK
Emerald is a cut stone, originating from Zambia and weighs 7.85 carats. The stone is not treated and is
Category

2010s Hong Kong Classical Roman Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Vintage 14k Gold Platinum Old Marquise Diamond Emerald Sapphire Pendant Necklace
Located in Montclair, NJ
Diamonds - 0.20ctw (approx.) (12) Natural Genuine Emeralds - Round Cut - Bezel Set - Green Color (4
Category

20th Century Pendant Necklaces

Materials

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

Platinum Deco Diamond Sapphire Garnet Ruby Emerald Topaz Charm Necklace
Located in North Hollywood, CA
: Full cut Diamonds approximately 1.50 carats, Topaz, Emerald, Ruby, Sapphire.
Category

Vintage 1920s Portuguese Art Deco Chain Necklaces

Materials

White Diamond, Emerald, Garnet, Ruby, Blue Sapphire, Topaz, Platinum

GIA Certified 2.07 Carat Natural, Heart-Cut Madagascar Ruby Ring Set in Platinum
Located in Tokyo, JP
, Madagascar Ruby and 0.78 Carat Diamonds. Rubies are referred to as "Ratnaraj" in Sanskrit meaning the King of
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Ruby, Platinum

Vintage 18k White Gold 3.75ct Round Diamond Emerald Cluster Flower Cocktail Ring
Located in Montclair, NJ
gold and featuring a cluster of 7 round emeralds surrounded by a set of 12 round brilliant cut diamonds
Category

Vintage 1970s Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

1.57 Carat Natural Blue Sapphire and Rose-Cut Diamond Ring set in 18K White Gold
Located in Tokyo, JP
A beautiful ring featuring 1.57 Carat Natural Blue Sapphire and 0.92 Carats Diamond Accents set in
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

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

Platinum Colombian Emerald Ring
Located in New York, NY
12 Oval cut Colombian emeralds weight an approximate total of 4.76 carats. Also as aproximatly 0.70
Category

Late 20th Century Unknown Band Rings

Materials

White Diamond, Emerald, Platinum

Contemporary Emerald and Diamond Floral Cluster Ring Set in 18k Gold
Located in London, England
vibrant green colour to it and is surrounded by a cluster of 12 round brilliant cut diamonds; all of which
Category

2010s British Contemporary Cluster Rings

Materials

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

1950s French 18 carat gold aquamarine and diamond earrings
Located in London, GB
9.5 carats each. Each earring is adorned with 2 single cut diamonds totalling approx 0.2 carats for
Category

Vintage 1950s French Modern Clip-on Earrings

Materials

Aquamarine, Diamond, 18k Gold

Art Deco 1930 s Ruby, Emerald, Sapphire and Diamond Bracelet in Platinum
Located in Wailea, HI
Art Deco 1930's Ruby, Emerald, Sapphire and Diamond Bracelet in Platinum 12 European Cut Diamonds
Category

Early 20th Century Unknown Art Deco Link Bracelets

Materials

Diamond, Emerald, Ruby, Sapphire, Platinum

Vintage Irish Claddagh Ring Emerald Diamond 14 Karat Gold Love Jewelry Estate
Located in Torrance, CA
mounted heart cut emerald measures 5mm (estimated at 0.50 carats), accented with 12 estimated 0.03 carat
Category

Mid-20th Century Irish Modern Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Green Amethyst Emerald Diamond Art Deco Style Engagement Ring in 14K White Gold
Located in Bangkok, TH
(approx. total weight) Accent Gemstones Type: Emerald Shape: French Cut Number: 12 Weight: 0.50 Carat
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Amethyst, Emerald, 14k Gold, White Gold

6 Carat Natural Burma Ruby and Diamond Ring in 18 Karat Yellow Gold
Located in New York, NY
. The Ruby is surrounded by approximately 0.75 Carats of brilliant cut diamonds VS quality. Excellent
Category

2010s Wedding Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

1ctw Diamond and Emerald Cocktail Ring, 18k Yellow Gold, Ring Size 5.25
Located in McLeansville, NC
. Stones: - diamonds, 12 stones - tapered baguette cut - 3 x 2 x 1.25 mm - approximately .75 total
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Goshwara London Blue Topaz and Peridot Emerald with Diamond Earrings
By Goshwara
Located in New York, NY
London Blue Topaz and Peridot Emerald Cut Earrings in 18K Yellow Gold with Diamonds, from 'Gossip
Category

21st Century and Contemporary Indian Contemporary More Earrings

Materials

Peridot, Topaz, 18k Gold

5 Carat Aquamarine, Diamond and 14K White Gold Ring
Located in Hicksville, NY
grams Center Stone Details: Stone: Aquamarine Cut: Emerald Cut Weight: 5.0 carat Side Diamond
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

Diamond Emerald and Sapphire Art Deco Style Drop Earrings in 18K White Gold
Located in Bangkok, TH
. in total) Accent Gemstones Type: Blue Sapphire Shape: French Cut Number: 48 Weight: 1.70 Carat
Category

21st Century and Contemporary Thai Art Deco Drop Earrings

Materials

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

Australian Opal Emerald Diamond Three Stone Ring in 14K Yellow Gold
Located in Bangkok, TH
French cut square shaped emeralds – just lovely! Ring Information Style: Art-deco Metal: 14K Yellow Gold
Category

21st Century and Contemporary Thai Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Opal, 14k Gold, Yellow Gold

Diamond and Emerald Frog Pin Brooch Set in 18 Karat White Gold
By E. Wolfe Company
Located in London, England
frog which is pavé set with 12 round brilliant cut diamonds. The rest of the frog body has been
Category

2010s British Modern Brooches

Materials

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

Elegant 0.95ct Double Excellent Ideal Cut Diamonds Pave Ring in 14k White Gold
Located in רמת גן, IL
This luxurious 14k white gold pave ring showcases a captivating 0.63-carat emerald-cut diamond as its
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Emerald Columbian Diamond 14k Vintage Certified Huge Fine 8.16 TCW Earrings
Located in Sylvania, GA
Old South Jewels proudly presents.... VINTAGE LUXURY 8.16 CARAT GIA COLOMBIAN EMERALD AND DIAMOND
Category

20th Century Retro Lever-Back Earrings

Materials

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

Art Deco Diamond And Emerald Necklace
Located in Los Angeles, CA
calibre-cut emeralds, set throughout with diamonds totaling approximately 12 carats, approximately 1 1/2
Contemporary 3.42ct Emerald and Diamond Floral Cluster Ring in Gold and Platinum
Located in London, England
is centrally set with an astounding 3.42 carat oval cut emerald which is claw set in yellow gold. The
Category

2010s English Modern Cluster Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold, Platinum

18 Karat Gold Art Deco Mint Green Emerald Baguette Diamond Stud Earrings
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Diamonds and 2.46 carats of emeralds precisely set in the pyramid shaped channel. This jewel is a treat for
Category

2010s Indian Art Deco Stud Earrings

Materials

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

32 Carat Aquamarine Diamond Platinum Ring
Located in Boca Raton, FL
This fabulous estate ring features an emerald cut aquamarine and diamonds in a platinum setting
Category

Mid-20th Century Modern Cocktail Rings

Materials

Aquamarine, White Diamond, Platinum

Ethiopian Opal Ruby Emerald Diamond Edwardian Style Necklace in 14K White Gold
Located in Bangkok, TH
A majestic antique Edwardian design pendant necklace decorated with opal, emerald, diamonds, and
Category

21st Century and Contemporary Thai Edwardian Pendant Necklaces

Materials

Diamond, Emerald, Opal, Ruby, 14k Gold, White Gold

1 Ct. Diamond Emerald and Sapphire Art Deco Style Ring in 18 White Gold
Located in Bangkok, TH
Featuring a central 1 carat emerald-cut diamond that sparkles with exceptional clarity and
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

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

Daring Art Deco Marquise Diamond Emerald Engagement Ring Vintage 1 3/4 Ct Center
Located in Santa Barbara, CA
: Marquise Color: M Clarity: SI Additional Gems/Diamonds: 14 French Cut Emeralds = 0.52 carats total 12
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

1.25 Ct. Emerald and Diamond Art Deco Style Engagement Ring in 18K White Gold
Located in Bangkok, TH
: Emerald Shape: French Cut Number: 12 Weight: 0.70 Carat (approx. total weight) This ring is ready to
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

4.25 Ct. Ruby Emerald Sapphire Diamond Art Deco Style Peacock Brooch in 18K Gold
Located in Bangkok, TH
: 4.25 Carat (approx.) Accent Gemstones I Type: Emerald Shape: French Cut Number: 12 Weight: 0.23 Carat
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

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

GIA CERTIFIED Cocktail Ring In 18Kt Gold With 20.41 Ctw In Emerald Diamonds
Located in Miami, FL
cut (17.48 x 13.2 x 7.63 mm) of a natural green emerald of 18.31 carats. (Emerald weight inscribed
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

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

French 1930 Art Deco Bracelet In Platinum with 3.32 Cts In Emerald And Diamonds
Located in Miami, FL
channel, with 12 caliber French rectangular step cut of natural vivid green Colombian Emeralds from the
Category

Vintage 1930s French Art Deco Link Bracelets

Materials

Diamond, Emerald, White Diamond, Platinum

Diamond and Emerald Swirl Art Deco Style Dangle Earrings in 18K White Gold
Located in Bangkok, TH
mm. long, a pair of bright and shining old cut diamonds – together weighting 0.80 carat, each
Category

21st Century and Contemporary Thai Art Deco Dangle Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

SPANISH COLONIAL 1790 Iberian Antique Ring In 18Kt Gold With Emerald Diamonds
Located in Miami, FL
prongs settings, with 12 old miners rose cut diamonds, with a total weight of about 1.12 carats. Emerald
Category

Antique 1790s Spanish Baroque Cocktail Rings

Materials

Diamond, Emerald, Gold, Yellow Gold, Silver, 18k Gold

EGYPTIAN LION 1970 Brooch In 18Kt Gold With 4.27 Ctw In Diamonds Emeralds
Located in Miami, FL
, with 28 calibrated round brilliant cut diamonds, with a total weight of about 1.68 carats, white
Category

Vintage 1970s Italian Modernist Brooches

Materials

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

LB Exclusive Platinum 0.73 Carat Diamond and 0.80 Carat Ruby Ring
By LB Exclusive
Located in Southampton, PA
jewelry collection. The band is made with platinum and set with a halo of emerald and round cut diamonds
Category

21st Century and Contemporary More Rings

Materials

Diamond, Ruby, Platinum

  • 1
  • ...
Get Updated with New Arrivals
Save "12 Carat Emerald Cut Diamond", and we’ll notify you when there are new listings in this category.

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.