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5 Carat Amethyst and Diamond Cocktail Ring in 14 Karat Yellow Gold
Located in New York, NY
nice. Emerald cut Amethyst. just 4 tiny round brilliant cut diamonds These ring is made with 4.8
Category

Early 2000s Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

4.62 Carat Apatite Sapphire Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
Pink and Yellow Sapphires that weigh 0.88 Carats and 12 Round Cut Diamonds that weigh 0.12 Carats
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Pink Sapphire, Yellow Sapphire, Apatite, 14k Gold, Wh...

1920 Art Deco Platinum Ring with 1.42 CTW in Diamonds and Emeralds
Located in Aventura, FL
platinum and featuring 31 old mine and single-cut diamonds totaling 0.92 carats in beautiful G-H color and
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Carved Coral Diamond Emerald Ring and Earrings Set in 14K White Gold
Located in Bangkok, TH
Weight: 0.16 Carat (approx.) Accent Gemstones II Type: Emerald Shape: French Cut Size: 1.9 – 2.1 mm
Category

21st Century and Contemporary Asian Art Deco Cocktail Rings

Materials

Coral, Diamond, Emerald, 14k Gold, White Gold

Vintage Seaman Schepps Cabochon Emerald and Diamond Earrings in 18k Yellow Gold
By Seaman Schepps
Located in Philadelphia, PA
carats set in 18k yellow gold, as well as 3 carats of round brilliant cut diamonds with G-H color and VS
Category

Vintage 1980s Lever-Back Earrings

Materials

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

ART DECO 1925 Cocktail Geometric Ring In Platinum 3.19 Ctw Diamonds Emeralds
Located in Miami, FL
emeralds and European cut diamonds. The ring is designed with geometric half-cylinders shapes, typical from
Category

Vintage 1920s American Art Deco Cocktail Rings

Materials

White Diamond, Emerald, Diamond, Platinum

Emerald Diamonds Ring Victorian Original Box Mappin Webb Yellow Gold, 1890
By Mappin Webb
Located in Herzelia, Tel Aviv
like a flower with 8 round-cut old-mine Diamonds. Mounted in Yellow Gold. The cabochon Emerald is set
Category

Antique 1890s British Victorian Engagement Rings

Materials

Diamond, Emerald, Yellow Gold

Emerald and Diamond Post and Omega Back Earrings 18 Karat Yellow Gold
Located in New York, NY
Pieces , approximately 0.5 carat Fine Natural emeralds and very fine diamonds with lots of shine and
Category

2010s Stud Earrings

Materials

Emerald, Diamond, 18k Gold, Yellow Gold

Antique Art Deco Platinum 1.44ct Old European Diamond Emerald Long Dinner Ring
Located in Montclair, NJ
) Natural Genuine Diamonds - Old Single Cut - Pave Set - VS1/VS2 Clarity - F/G Color - 0.32ctw (approx.) (12
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

6 Carat Natural Burma Ruby and Diamond Pendant in 18 Karat + Yellow Gold Chain
Located in New York, NY
small ruby by leisure . The Ruby is surrounded by approximately 0.75 Carats of brilliant cut diamonds VS
Category

2010s Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

GIA Emerald Platinum Diamond Earrings Colombian Vintage 18K Fine AAA 7.86 Cts!
Located in Sylvania, GA
Transparent Undyed Pear Cut Emeralds Approx: 3.68 Carats 66 Round Brilliant & Marquise Diamonds are Grade VS
Category

Early 20th Century Dangle Earrings

Materials

Diamond, Emerald, Platinum, Gold, 18k Gold

Ruby Emerald Diamond Shrimp Earrings Vintage 14 Karat Yellow Gold Estate Jewelry
Located in Torrance, CA
marquise cut emeralds total an estimated 0.60 carats, accented with 12 approx. 0.01 carat rubies (0.12
Category

Mid-20th Century Unknown Modern Drop Earrings

Materials

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

Vivid Green Emerald and Diamond 18 Karat White Gold Double Flower Ring
Located in Tustin, CA
diameter each and weigh approximately .12 carats. 10 pave diamonds graduate in size and weigh approximately
Category

Late 20th Century American Contemporary Fashion Rings

Materials

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

Stunning 1.45ct Ruby, Emerald, and Natural Diamonds Ring in 18K Yellow Gold
Located in רמת גן, IL
features 12 princess-cut red rubies with a total weight of 0.36ct, paired with 13 princess-cut green
Category

2010s Singaporean Cluster Rings

Materials

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

South Sea Pearl, Emerald with Diamond Accents 18K Yellow Gold Ring
Located in New York, NY
& Grace ring. The 18k Yellow Gold jewelry boasts 12-15 Round (1pcs) 20.03 Carat, 2.0 mm Square-cut Emerald
Category

20th Century Chinese Art Deco Cocktail Rings

Materials

Diamond, Emerald, South Sea Pearl, 18k Gold, Yellow Gold

6 Ct Oval Shape Emerald 3 Ct Diamond Post Back Earrings 14 Karat White Gold
Located in New York, NY
Approximately 6 Carat Oval Shape Natural Emerald & Diamond Post Back Earrings 14 Karat White Gold
Category

2010s Stud Earrings

Materials

Diamond, Emerald, 14k Gold, White Gold

Emerald and Diamond Art Deco Style Omega Earrings in 18K White Gold
Located in Bangkok, TH
emerald of approximately 0.70 carat each. Accented by 24 French cut emeralds and 40 round cut diamonds on
Category

21st Century and Contemporary Thai Art Deco Stud Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

EGL Certified 1.90 Carat Diamond Edwardian Filigree Platinum Engagement Ring
Located in Stamford, CT
, approx. total weight 1.90cts, K – L, I1, EGL certificate # US311957402D 12 old European cut diamonds
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

2.75 Ct. Black Diamond Emerald Art Deco Inspired Stud Earrings in 14K Gold
Located in Bangkok, TH
: Emerald Shape: French Cut Size: 1.7 mm. Number: 8 Weight: 0.24 Carat (approx. in total) These earrings
Category

21st Century and Contemporary Thai Art Deco Stud Earrings

Materials

Diamond, Black Diamond, Emerald, 14k Gold, White Gold

Diamond and Emerald Art Deco Style Engagement Ring in 18k White Gold
Located in Bangkok, TH
: French Cut Size: 4 x 2 mm. Number: 12 Weight: 1.14 Carat (approx.) Accent Gemstones II Type: Diamond
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

ANTIQUE Dangle Earrings In 18Kt Gold With 3.04 Ctw In Oval Emeralds Diamonds
Located in Miami, FL
round brilliant cut diamonds, with an approximate weight of about 1.44 carats, white colorless F/G color
Category

Vintage 1930s American Art Deco Dangle Earrings

Materials

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

Vintage 14k White Gold 4.88ct GIA Pear Emerald Diamond Large Wave Ballerina Ring
Located in Montclair, NJ
by approximately 2.26 carats of baguette and round brilliant cut diamonds, in which each is prong set
Category

Late 20th Century Unknown Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

47 Carat Natural Aquamarine Diamond Platinum Ring Estate Fine Jewelry
Located in Montreal, QC
Diamonds (12 marquis and 18 round brilliant cut); 5.34 total carat weight, center set with a fabulous 'full
Category

Mid-20th Century Modernist Engagement Rings

Materials

Aquamarine, Diamond, Platinum

2.80 Carat Aquamarine Multi-Color Sapphire Diamond Yellow Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
weigh 0.67 carats and 12 Round Cut Diamonds that weigh 0.10 carats (Clarity: SI, Color: F). The Total
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapp...

Van Cleef Arpels Vintage Diamond Ruby Emerald Young Lion Yellow Gold Brooch
By Van Cleef Arpels
Located in New York, NY
dazzling round brilliant cut diamonds, totaling approximately 0.10 carats, adding a touch of brilliance and
Category

Late 20th Century American Contemporary Brooches

Materials

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

Emerald Blue Sapphire Diamond Art Deco Style Engagement Ring in 18K Yellow Gold
Located in Bangkok, TH
opulent 1.21 carat oval emerald surrounded by French cut blue sapphire and sparkling round diamonds. This
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

8.5 Carat Cushion Cut Treated Ruby Pendant 14 Karat Yellow Gold With Chain
Located in New York, NY
8.5 Carat Emerald Cut Treated Ruby Pendant 14 Karat Yellow Gold With Chain 16" This Simple yet
Category

2010s Pendant Necklaces

Materials

Ruby, 14k Gold, Yellow Gold

Emerald Eternity Band in Yellow Gold
By Alberto
Located in GREAT NECK, NY
Details: 12 Round Cut White Diamonds at 3.57 Carats Clarity: SI / Color: H-I Ring Size: Size 6.5 This ring
Category

2010s American Contemporary Band Rings

Materials

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

9.00 Carat Natural Peridot and Diamond 14 Karat Solid White Gold Ring
Located in Los Angeles, CA
Total Natural Emerald Cut Peridot Weight is: Approx. 7.70 Carats Peridot Measures: Approx. 12 x 10mm
Category

2010s American Cocktail Rings

Materials

Diamond, Peridot, 14k Gold, White Gold

Black Opal Emerald Sapphire and Diamond Art Deco Style Bird Brooch in 18K Gold
Located in Bangkok, TH
Cut Size: 1.5 mm. Number: 12 Weight: 0.365 Carat (approx.) Accent Gemstones Type: Diamond Shape
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

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

Sensational 18.71 Carat Bi-Color Amethyst and Diamond 18 Karat White Gold Ring
Located in Tustin, CA
total weight of the amethyst and diamond ring is approximately 18.71 carats. Emerald cut bi-color
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

10.56 Carat Natural Indicolite Tourmaline and Diamond Ring Set in Gold
Located in Tokyo, JP
A stunning Cocktail Ring featuring a 10.56 Carat, Natural Indicolite Tourmaline and 1.00 Carats of
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Tourmaline, Indicolite, Gold, 18k Gold

Gem 11 Carat Spessartite Garnet Platinum Diamond Ring
Located in New York, NY
girdle 12 perfectly matched bright white and sparkly oval brilliant cut diamonds embellish the
Category

Vintage 1980s American Cocktail Rings

Materials

Diamond, Garnet, Platinum

18KT Gold Baguette Diamonds Halo Cluster Emerald Illusion Stud Earrings E56027A
Located in Antwerpen, BE
. This Cluster Gives an illusion of an emerald solitaire diamond earrings. Unexpected elegance. These
Category

2010s Belgian Art Deco Stud Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

1.27 Carat, Natural Ruby and Diamond Band Ring Set in 18K Yellow Gold
Located in Tokyo, JP
A stunning Band Ring featuring a total of 1.27 Carats, Natural Rubies and 1.24 Carats of Diamonds
Category

20th Century Japanese Modern Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Jadeite and Diamond Butterfly Pin or Brooch Platinum and Yellow Gold
Located in Laguna Hills, CA
. Diamonds (1) 4.50 mm round brilliant; .35 carat (1) 3.20 mm round brilliant: .12 carat (3) 2.40 mm round
Category

Antique 19th Century Unknown Art Deco Pendant Necklaces

Materials

Diamond, Emerald, Jade, Yellow Gold, Platinum

Art Deco Diamond and Sapphire Bracelet
Located in Beverly Hills, CA
baguette shape top quality white diamonds and four emerald cut sapphires. The combination of diamonds and
Category

Vintage 1920s French Art Deco Tennis Bracelets

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Aquamarine Diamond Gold Palladium Cocktail Ring
Located in Stamford, CT
x 7mm Emerald cut genuine untreated natural Aqua, approx. total weight 2.00cts 12 single cut
Category

Vintage 1940s Fashion Rings

Materials

Aquamarine, Diamond, 14k Gold, Palladium, Rose Gold

Stupendous 18 Carat Pink Morganite and Diamond Cocktail Ring 18 Karat White Gold
Located in Tustin, CA
Stupendous 18 carat pear shaped brilliant cut pink morganite and diamond cocktail ring is talon
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

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

Georgios Collections 18 Karat Yellow Gold Ruby Ring With Emerald and Sapphires
By Georgios Collections Inc
Located in Astoria, NY
features brilliant cut diamonds total weight of 0,22 Carat, a Center Ruby, 2 Sapphires and 12 Emeralds on
Category

2010s Greek Byzantine Cocktail Rings

Materials

Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...

Alex Jona Emerald Tsavorites Yellow Gold Coil Snake Ring
By Alex Jona
Located in Torino, Piedmont
round cut Emerald weighing 0.85 carats, enhanced by 0.28 carats of tsavorites. Ring Size: EU 12/US 6
Category

2010s Italian Contemporary Solitaire Rings

Materials

Emerald, Tsavorite, Yellow Gold

1.00 Carat Natural, Buffed Top Amethyst and Diamond Ring Set in 18 Karat Gold
Located in Tokyo, JP
A beautiful Engagement Ring featuring a 1.00 Carat, Natural Buff-Top Cut Amethyst and 0.14 Carats
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Amethyst, Gold, 18k Gold, Yellow Gold

Floral Motif Interchangeable Diamond Earrings Set with Heart Shape Diamonds
Located in New York, NY
in 14K white gold. Jewel Details Diamond Petals: 12 Heart Shaped Diamonds - 2.04 Carat Total Weight
Category

2010s American Romantic Stud Earrings

Materials

Diamond, Emerald, Ruby, Pink Sapphire, 14k Gold, White Gold

Floral Motif Interchangeable Diamond Earrings Set with Heart Shape Diamonds
Located in New York, NY
14K white gold. Jewel Details Diamond Petals: 12 Heart Shaped Diamonds - 2.04 Carat Total Weight D-F
Category

2010s American Romantic Stud Earrings

Materials

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

2.91 TDW Floral Interchangeable Diamond Earrings Set with Heart Shape Diamonds
Located in New York, NY
14K white gold. Jewel Details Diamond Petals: 12 Heart Shaped Diamonds - 2.91 Carat Total Weight E-G
Category

2010s American Romantic Stud Earrings

Materials

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

2.5ct Aquamarine Ring w Earth Mined Diamonds in Solid 14K White Gold EM 9x8mm
Located in Columbus, OH
This beautiful ring features a 2.57 carat emerald cut Aquamarine gemstone with natural earth mined
Category

2010s American Modern Cocktail Rings

Materials

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

Art Deco Platinum Aquamarine and Diamond Ring
Located in Chicago, IL
cut Aquamarines and further set with numerous round brilliant cut Diamonds totaling .60 carat. Finger
Category

Vintage 1940s American Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Vivid Peridot and Diamond Ring in Yellow and Red Gold, ca. 1950s
Located in Idar-Oberstein, DE
A peridot and diamond ring in 14k yellow and red gold, ca. 1950s. The emerald cut peridot weighs
Category

Vintage 1950s Dome Rings

Materials

Diamond, Peridot, 14k Gold

Retro Diamond Aquamarine 18K Gold Classic Clip on Earrings
Located in Miami, FL
white gold, they have (2) genuine Aquamarine, emerald cut, prong-set, approximately 23.75 carats in
Category

Vintage 1960s American Retro Clip-on Earrings

Materials

Aquamarine, Diamond, 18k Gold

Floral Interchangeable Diamond Earrings Set, EGL Certified
Located in New York, NY
14K white gold. Jewel Details Diamond Petals: 12 Heart Shaped Diamonds - 2.04 Carat Total Weight D-F
Category

2010s American Romantic Stud Earrings

Materials

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

Aquamarine Eternity Ring 18K Estate Diamond Crescents Gemstone Band
Located in Torrance, CA
Stylish aquamarine & diamond eternity ring crafted in 18 karat white gold. 12 emerald cut
Category

Mid-20th Century Unknown Modern Band Rings

Materials

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

Temple St. Clair Dangle Necklace In 18Kt Gold With 122.64 Ctw Diamonds And Gems
By Temple St. Clair
Located in Miami, FL
calibrated round brilliant cut diamonds, 1.58 carats, white colorless E/F color, VS-2 clarity. Citrine
Category

1990s Italian Modernist Drop Necklaces

Materials

Citrine, Diamond, White Diamond, Iolite, Rubelite, Tourmaline, Gold, 18k...

Georgios Collections CUSTOM ORDER 18 Karat Yellow Gold Diamond Byzantine Ring
By Georgios Collections Inc
Located in Astoria, NY
piece features 6 Brilliant cut Diamonds in a total weight of 0.90 Carat. Width: 13.8 mm Weight: 12
Category

2010s Greek Byzantine Band Rings

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

12ct Aquamarine Diamond Ring Vintage 18k White Gold Fine Cocktail Jewelry
Located in Torrance, CA
cut aquamarine measures 16mm x 12.5mm (estimated at 12 carats), accented with 0.11 carats of diamonds
Category

Mid-20th Century Unknown Modern Cocktail Rings

Materials

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

Captivating 18k White Gold Three Stone Ring 1.06ct Natural Diamonds GIA Cert
Located in רמת גן, IL
A captivating ring with a dazzling 0.7 carat square emerald cut natural diamond. It has 0.36 carat
Category

2010s Israeli Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

5.5ctw Pink Tourmaline Diamond Tsavorite Garnet Ring, 14k YG, Ring
Located in McLeansville, NC
tourmaline, diamond, tsavorite garnet, and emerald cut. This stunning 5.5ctw ring resembles a diamond halo
Category

1990s Fashion Rings

Materials

Diamond, Garnet, Tourmaline, Tsavorite, 14k Gold, Yellow Gold

ART DECO 1930 Cocktail Ring In Platinum With 33.72 Ctw Aquamarine Diamonds
Located in Miami, FL
European round cut of natural diamonds, with about 1.22 carats, white colorless F/G color, VS-2 clarity
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, 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.