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0.77 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 0.77ct. graded I color with VVS2 clarity. Accentuating the center stone
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

2.05 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 2.05ct. graded I color with VS1 clarity. The center stone is accentuated
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

1.03 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 1.03ct. graded J color with SI1 clarity. Accentuating the center stone are
Category

20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

1.64 carat GIA cert Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring is centered with a sparkling GIA certified old mine cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

1.88 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
cut diamond that weighs 1.88ct. and is graded K color with VS1 clarity. The center diamond is
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

1.98 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
old European brilliant cut diamond that weighs 1.98ct. graded K color with SI2 clarity. The center
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

0.77 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
diamond that weighs 0.77ct. and is graded K color with VS2 clarity. Accentuating the center stone are
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

0.96 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring is centered with a sparkling GIA certified round brilliant cut diamond
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

0.97 Carat GIA Cert Diamond Gold Engagement Ring
Located in New York, NY
diamond that weighs 0.97ct. graded H color with SI1 clarity. The center stone is flanked by two dazzling
Category

20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold

1.57 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
certified round brilliant cut diamond that weighs 1.57ct. and is graded I color with SI1 clarity. The center
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

1.01 Carat GIA Cert Diamond Platinum Cluster Ring
Located in New York, NY
brilliant cut diamond that weighs 1.01ct. graded I color with VS1 clarity. Accentuating the center stone are
Category

Late 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

3.61 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 3.61ct. The color of the diamond is J with SI1 clarity. The center diamond
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

2.24 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
certified old European cut diamond that weighs 2.24ct. graded K color with VS2 clarity. Accentuating the
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1.92 carat GIA cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 1.92ct and is graded F color with VS2 clarity. Accentuating the center
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

Stunning 2.36 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
cut diamond that weighs 2.36ct. graded I color with SI2 clarity. The center diamond is flanked by
Category

Vintage 1970s Engagement Rings

Materials

Diamond, White Diamond, Platinum

Stunning 2.27 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
This platinum ring is centered with a sparkling GIA certified round brilliant cut diamond that
Category

20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

Breathtaking 2.05 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
This amazing platinum ring centers a sparkling GIA certified round brilliant cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Edwardian 1.38 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
certified circular brilliant cut diamond that weighs 1.38ct. and is graded K color with SI1 clarity. The
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

Edwardian 0.87 carat GIA cert Diamond platinum Engagement Ring
Located in New York, NY
mine cut diamond that weighs 0.87ct. graded G color with SI2 clarity. The center stone is accentuated
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Antique 0.93 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 0.93ct. graded J color with VS2 clarity. The center diamond is accentuated
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

14.64 Carat Blue Sapphire GIA cert. Diamond Ring 18kt
Located in Miami, FL
. certified triangular natural earth mined diamonds, each weighing 1.46 carats (E-color, SI1 clarity) and 1.47
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold

1920s 1.01 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 1.01ct. The color of the diamond is I with VS1 clarity. The center stone
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

1.06 Carat GIA Cert Diamond Gold Halo Engagement Ring
Located in New York, NY
Made of 18K white gold, this ring centers a sparkling GIA certified round brilliant cut diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.48 Carat GIA Cert Diamond gold Solitaire Engagement Ring
Located in New York, NY
This 14k white gold ring centers a sparkling GIA certified round cut diamond that weighs 1.48ct
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Charming .54 Carat GIA Cert Diamond Gold Engagement Ring
Located in New York, NY
diamond that weighs 0.54ct. and is graded I color with VS2 clarity. The ring is stamped 18k and weighs 1.6
Category

Early 20th Century Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Charming .59 Carat GIA Cert Diamond Ruby Halo Engagement Ring
Located in New York, NY
diamond that weighs 0.59ct. graded H color with VS2 clarity. Accentuating the center stone are high
Category

20th Century Engagement Rings

Materials

Diamond, Ruby, Platinum

Peter Suchy 1.70 Carat GIA Cert Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Original emerald cut diamond from an estate 1.70ct I color VVS2 white face up, unusually bright and
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Art Deco 1.04 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
mine cut diamond that weighs 1.04ct. The color of the diamond is I with SI2 clarity. The center stone
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco 1.05 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
mine cut diamond that weighs 1.05ct. The color of the diamond is I with VS2 clarity. The center diamond
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

0.62 Carat GIA Cert Diamond Sapphire Halo Platinum Engagement Ring
Located in New York, NY
diamond that weighs 0.62ct. graded I color with VS1 clarity. Accentuating the center stone are even
Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Peter Suchy 1.00 Carat GIA Cert Diamond Platinum Halo Engagement Ring
By Peter Suchy
Located in Stamford, CT
Diamond engagement ring. GIA certified Old European center stone. 1.00cts. accented with a halo of
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Stunning Natural 8.18 Carat Sapphire 1.99 Carats GIA Cert Diamonds Gold Ring
Located in New York, NY
sapphire that weighs 8.18ct. The sapphire is flanked by two sparkling GIA certified trilliant cut diamonds
Category

20th Century Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold

1.57 Carat GIA Cert Diamond Gold Engagement Ring and Wedding Band Set
Located in New York, NY
The engagement ring centers a sparkling GIA certified round brilliant cut diamond that weighs
Category

20th Century Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Louis Newman & Co 4.27 carat Elongated Cushion GIA Cert Diamond Three Stone Ring
Located in New York, NY
with 2 halfmoon diamonds weighing about 1 carat total. The halfmoons are cut to the longer side to help
Category

2010s American Engagement Rings

Materials

White Diamond, Diamond, Platinum, Yellow Gold, 18k Gold

1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond Gia Cert
Located in Sherman Oaks, CA
1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond GIA Cert Diamond General Info
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

18k White Gold 3 Stone Diamond Ring With a 0.70 Ct And 2x 0.35 Cts Brilliant Cut
By Valérie Danenberg
Located in PARIS, FR
with worked baskets where the light came to illuminate the gems. GIA CERT. Diamonds: 0.70 Carat
Category

2010s French Classical Roman Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA cert 5.33 Carat Ruby Diamond Platinum Cocktail Ring
By Diamond Scene
Located in New York, NY
diamonds weighing 0.66 carats. Set in platinum.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, White Diamond, Platinum

GIA Cert Natural Fancy Yellow Cushion Diamond Halo Leverback Earrings ref1164
By Diamond Town
Located in New York, NY
At the heart of these enchanting earrings are GIA-certified cushion-cut diamonds, captivating in
Category

21st Century and Contemporary Dangle Earrings

Materials

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

Art Deco Colombian Square Cut Emerald Diamond Platinum Three-Stone Ring
Located in Greenwich, CT
/Gubelin certification #15075166. No oil enhancement applied to emerald as indicated on certs. Diamond GIA
Category

Vintage 1920s American Art Deco Engagement Rings

Materials

Emerald, White Diamond, Platinum

Elegant 4.26 Carat GIA Cert Emerald Cut Diamond Solitaire Engagement Ring
By Diamond Scene
Located in New York, NY
A beautiful brilliant diamond in a custom made mounting. GIA certified 4.26 carat K color VVS2
Category

21st Century and Contemporary Swiss Engagement Rings

Materials

Diamond, White Diamond, Platinum

Fine 4.21 Carat GIA Cert Minor Oil Emerald Diamond Platinum Ring
By Diamond Scene
Located in New York, NY
carats of diamonds in platinum. A fabulous ring that makes a statement but is still wearable. The
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Emerald, Platinum

GIA Cert 119.06 Carat Multicolor Mixed Cut Sapphire and Diamond Bracelet ref325
By Diamond Town
Located in New York, NY
, including pink, yellow, green, lavender, and light blue. 3.68 carats marquise and round cut natural diamonds
Category

21st Century and Contemporary Chain Bracelets

Materials

Yellow Sapphire, Green Sapphire, Pink Sapphire, Blue Sapphire, Sapphire,...

GRS Certified 2.53 Carat Vivid Green Colombian Minor Oil Emerald & Diamond Ring
By Gad & Co.
Located in Miami, FL
) - Treatment: Minor (per GRS cert.) Diamond Details: - Carat: 2.38 CTTW - Cut: Round Brilliant - Color: E-F
Category

2010s Colombian Retro Cluster Rings

Materials

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

GIA Cert 2.55 Ct Cushion Ceylon Sapphire and 2.44ct Natural Diamond Ring ref1045
By Diamond Town
Located in New York, NY
by a double halo of round white diamonds with a total diamond weight of 1.61 carats, this ring
Category

21st Century and Contemporary Contemporary Bridal Rings

Materials

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

GIA Cert Radiant Cut 0.63 Ct Natural Fancy Intense Yellow Ring in 18k ref413
By Diamond Town
Located in New York, NY
diamond weighing 0.63 carats. It is elegantly encircled by a double halo of round diamonds, set in a
Category

21st Century and Contemporary Contemporary Wedding Rings

Materials

Yellow Diamond, Diamond, White Gold, Rose Gold, 18k Gold

GIA Cert 2.89 Carat T.W. Natural Yellow Cushion Dia Halo Earrings in 18k ref1915
By Diamond Town
Located in New York, NY
Experience the pinnacle of luxury with our extraordinary yellow cushion diamond earrings. These
Category

21st Century and Contemporary Stud Earrings

Materials

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

1.05ct. Diamond GIA Cert Platinum Engagement Ring
Located in New York, NY
Made of platinum, this ring centers a sparkling GIA certified round brilliant diamond that weighs
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Cert .91ct Alexandrite & Diamond Ring in Platinum
Located in Bloomington, MN
GIA .91ct Alexandrite & Diamond Ring in Platinum Introducing this beautiful ring crafted in 950pt
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Alexandrite, Diamond, White Diamond, Platinum

GIA Cert .62ct Natural Alexandrite & Diamond Ring in Platinum
Located in Bloomington, MN
GIA Cert .62ct Natural Alexandrite & Diamond Ring in Platinum Introducing this stunning ring
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Alexandrite, Diamond, White Diamond, Platinum

GIA Cert 1.02 Carat Diamond Platinum Engagement Ring
Located in New York, NY
certified round brilliant cut diamond that weighs 1.02ct. The color of the diamond is I with VS2 clarity
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Platinum

Stunning GIA Cert 2.08 Carat Diamond Platinum Ring
Located in New York, NY
brilliant cut diamond that weighs 2.08ct. and is graded H color with VS2 clarity. Accentuating the center
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

18k Gold, Vintage 1.50 Diamond Pendant (GIA Cert)
Located in Miami, FL
carats of round brilliant cut diamonds, boasting VS clarity and F color. Each diamond is meticulously
Category

21st Century and Contemporary European Art Nouveau Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

GIA Cert 1.00 Carat Diamond Gold Engagement Ring
Located in New York, NY
Made of 18k white gold, this ring centers a sparkling GIA certified round cut diamond that weighs 1
Category

Late 20th Century Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Nally Magnificent GIA Cert Natural Pink Diamond Platinum Earrings
Located in New York, NY
Unique pink diamond earrings!!!!! Two pear-shaped pink diamonds surrounded by 28 marquise, 8 pear
Category

2010s American Romantic Dangle Earrings

Materials

Diamond, Pink Diamond, Platinum

1.10 Carat GIA Cert Fancy Color Diamond Gold Necklace
Located in Miami, FL
Diamond Accented by .33 Carats of Round Brilliant Cut Diamonds, G Color, VS Clarity. Weight: 3.91 grams
Category

21st Century and Contemporary American Drop Necklaces

Materials

Brown Diamond, Diamond, 18k Gold

Amazing GIA Cert 2.06 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring is centered with a sparkling GIA certified princess cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Cert Natural Alexandrite & Diamond Engagement Ring In White Gold
Located in Bloomington, MN
GIA Cert Natural Alexandrite & Diamond Engagement Ring In White Gold Introducing this beautiful
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Alexandrite, Diamond, White Diamond, 14k Gold, White Gold

2.85CT Total Weight Fancy Intense Yellow Diamond Ring, GIA Cert
Located in New York, NY
commitment. Fancy Intense Yellow Diamond: 2.50Ct, GIA Cert Epaulette Diamonds: 0.35CT Material: PLAT & 18K
Category

21st Century and Contemporary American Aesthetic Movement Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

Elegant GIA Cert 1.06 Carat Diamond Gold Heart Pendant
Located in New York, NY
shape diamond that weighs 1.06ct. and is graded K color with SI1 clarity. Accentuating the center stone
Category

20th Century Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

1920s GIA Cert 1.28 Carat Diamond Platinum Engagement Ring
Located in New York, NY
brilliant cut diamond that weighs 1.28ct. graded H color with VS2 clarity. The center stone is flanked by
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

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Certed Diamonds For Sale on 1stDibs

There is a broad range of certed diamonds for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Platinum, Gold and 18k Gold. Our collection of these items for sale includes 320 vintage editions and 480 modern creations to choose from as well. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. Pieces in our collection of certed diamonds made by Art Deco jewelers — as well as those associated with Modern — are very popular. J. Birnbach, Polya Medvedeva Jewellery and Tiffany & Co. each produced beautiful examples of these items that are worth considering. Today, if you’re looking for round cut certed diamonds and are unable to find the perfect match, our selection also includes cushion cut and emerald cut alternatives. If you’re browsing the variety of certed diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are Certed Diamonds?

Prices for certed diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,100 and can go as high as $4,450,000, while certed diamonds, on average, fetch $23,387.

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.