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1 Carat Cushion Cut Diamond

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Gia Certified 4.03 Carat Diamond G Color VS1 Clarity Platinum Solitaire Ring
By FERRUCCI
Located in New York, NY
GIA Certified 4.03 Carat white Cushion cut diamond, color G, clarity VS1, triple Excellent in Cut
Category

2010s American Modern Solitaire Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 0.61 Carat Fancy Intense Blue VS1 Clarity Diamond
Located in บางรัก, TH
presence, particularly when well cut. At this carat weight, the diamond can exhibit excellent brilliance
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA 1.01 Ct Fancy Light Pink Cushion Pave Set 18K Engagement Ring with Halo
By Sebastian Bernard
Located in Los Angeles, CA
A Square Cushion Cut Natural Fancy Light Pinkish Purple GIA certified center Diamond set in a
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold

Amwaj 18 Karat White Gold Pendant with Multi-Cut Diamonds
By Amwaj Jewellery
Located in Abu Dhabi, Abu Dhabi
outline of the heart motif, with 2 pear cut and 1 cushion cut diamonds forming the inner heart silhouette
Category

21st Century and Contemporary Emirian Art Deco Chain Necklaces

Materials

Diamond, White Gold

GIA Certified 1.00 Carat Very Light Green Yellow SI1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 1.00 ct Colour: Very Light Green Yellow
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Eighteen Karat Yellow Gold Pendant Necklace with One Carat Yellow Diamond
By Polya Medvedeva Jewellery
Located in Berlin, DE
cushion diamond weighing 1 carat (Y-Z, SI). The cushion cut is an ideal choice for yellow diamonds, and
Category

21st Century and Contemporary German Contemporary Pendant Necklaces

Materials

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

GIA Certified 0.83 Carat Fancy Light Pinkish Brown VS1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 0.83 Colour: Fancy Light Pinkish Brown
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.42 Carat Fancy Light Purplish Pink SI2 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 0.42 Colour: Fancy Light Purplish Pink
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 2.00 Carat U to V Range I1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 2.00 Colour: U to V Range Clarity: I1
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.52 Carat Fancy Light Gray Blue VVS1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 0.52 Colour: Fancy Light Gray Blue
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Antique 2.46 Carat Ceylon Sapphire and Diamond 18k White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 2.46 carat cushion cut blue sapphire and 0.38 carat diamond, 18 karat
Category

20th Century Unknown Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

AGL Certified 2.01 Carat Fancy Light Brownish Pink VS Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 2.01 ct Colour: Fancy Light Brownish Pink
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 3.01 Carat Fancy Brownish Greenish Yellow SI2 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 3.01 ct Colour: Fancy Brownish Greenish
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Lovely 1.44ct Double Excellent Ideal Cut Diamonds 3-Stone Ring in 18k White Gold
Located in רמת גן, IL
Embrace timeless elegance with this exquisite 1.00-carat cushion cut diamond 3-stone ring, set in
Category

2010s Israeli Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.82 Carat Fancy Grayish Greenish Yellow VS2 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 0.82 ct Colour: Fancy Grayish Greenish
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.54 Carat Fancy Light Yellow Green VS2 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 0.54 ct Colour: Fancy Light Yellow Green
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1.28 Carat Fancy light Yellowish Green I1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 1.28 ct Colour: Fancy Light Yellowish
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1CT Cushion GH-I1 Natural Diamond Halo Engagement Ring for Women 14K Yellow Gold
Located in Los Angeles, CA
Cushion Cut 1 CT GH-I1 Natural Diamond Halo Engagement Ring for Women 14K Gold Specification
Category

21st Century and Contemporary American Artist Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

GIA Certified 1.51 Carat Fancy Light Brownish Pink I1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 1.51 ct Colour: Fancy Light Brownish
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 4.09 Carat Fancy Brownish Greenish Yellow SI1 Clarity Diamond Ring
Located in บางรัก, TH
Set with- Stone type: Diamonds Shape: Cushion Carat: 4.09 ct Colour: Fancy Brownish Greenish
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Antique Victorian 14k Gold 0.82ct Old Cushion Diamond Solitaire Engagement Ring
Located in Montclair, NJ
during the Victorian era. The ring features an old mine cushion cut diamond solitaire which is claw prong
Category

Antique 1890s Victorian Solitaire Rings

Materials

Diamond, 14k Gold

Eighteen Karat Rose Gold Pendant Necklace with One Carat Yellow Diamond
By Polya Medvedeva Jewellery
Located in Berlin, DE
encrusted with a certified natural yellow cushion diamond weighing 1 carat, with a clarity of SI and a color
Category

21st Century and Contemporary German Contemporary Pendant Necklaces

Materials

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

1CT GH-I1 Cushion Natural Diamond Halo Engagement Ring for Women 14K Rose Gold
Located in Los Angeles, CA
Cushion Cut 1 CT GH-I1 Natural Diamond Halo Engagement Ring for Women 14K Gold Specification
Category

21st Century and Contemporary American Artist Engagement Rings

Materials

Diamond, 14k Gold, Rose Gold

46.00 carat sapphire and 11.93 carat natural diamond necklace
Located in Ramat Gan, IL
Total Carat Weight: 46.00ct Color Grade: Blue Clarity Grade: Eye Clean Individual Stones: 1 cushion cut
Category

2010s Israeli Art Deco Choker Necklaces

Materials

Diamond, Sapphire, 18k Gold

GIA Certified 3.08 Carat Sapphire Diamond White Gold Three-Stone Engagement Ring
Located in Stamford, CT
diamonds. 1 cushion cut yellowish orange sapphire SI, approx. 2.68ct GIA Certificate # 1206567078 2
Category

Late 20th Century Three-Stone Rings

Materials

Diamond, Yellow Sapphire, Sapphire, Gold, 14k Gold, Yellow Gold, White Gold

1.03 Carat Yellow Diamond 18 Karat Two-Tone Gold Pendant Necklace
Located in New York, NY
This beautiful cushion cut Yellow Diamond Pendant features a 1.03 carat cushion cut Yellow Diamond
Category

20th Century Chinese Modern Pendant Necklaces

Materials

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

GIA Cert 10.16 Carat Vivid Blue Sapphire and Diamond Platinum Ring Size 5.5
By H H Jewels
Located in Miami, FL
10.16 carats. The center gemstone is flawlessly flanked by two GIA certified antique cushion cut
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

35.56 Carat Coral Emerald and Diamond Yellow Gold Combination Ring / Pendant
Located in Jesmond, Newcastle Upon Tyne
Content 35.56 carats Emerald Quality Cut Marquise Content 2.20 carats Diamond Quality Colour (average
Category

Vintage 1960s Unknown Cocktail Rings

Materials

Coral, Diamond, Emerald, Yellow Gold

Antique 18ct Yellow Gold Silver French, Victorian era 7 Carat Diamond Bracelet
Located in Brighton, GB
gracefully intertwine with captivating cushion and old-cut diamonds, creating a harmonious blend of
Category

Antique Late 19th Century French Victorian Link Bracelets

Materials

Diamond, 18k Gold, Yellow Gold, Silver

GIA Certified Unheated Ruby Drop Earrings 4.35 Carats with Marquise Diamonds
By Merkaba
Located in Beverly Hills, CA
exclusive earrings feature 4.35 carats of vivid red rubies, paired with 0.86 carats of marquise-cut diamonds
Category

21st Century and Contemporary American Modern Drop Earrings

Materials

Diamond, White Diamond, Ruby, Multi-gemstone, Platinum

Antique Gold Silver Ring w GIA No Heat Sapphire Old Mine Peruzzi Cut Diamond
Located in Montclair, NJ
:) --Stone(s):-- (1) Natural Genuine Sapphire - Cushion Cabochon Cut - Pave Bezel Set - Dark Greenish Blue
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Gold, Silver

Yellow Gold Magnolia Engagement Ring with One Carat Yellow Diamond
By Polya Medvedeva Jewellery
Located in Berlin, DE
yellow diamond with great characteristics. The cushion cut with "crushed ice" facets highlights the best
Category

21st Century and Contemporary German Contemporary Engagement Rings

Materials

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

14.60 Carat Edwardian Brooch Pin / Necklace
Located in Miami, FL
58 Old Miner Cut diamonds weighing approximately 14.60 carats total, H-I color, VS-SI clarity. The
Category

Antique Early 1900s Unknown Victorian Pendant Necklaces

Materials

Diamond, Platinum

TJD 1.0 Carat Amethyst Diamond 14 Karat White Gold Solitaire Anniversary Ring
By TJD
Located in New York, NY
, 4 baguette diamond and 1 cushion cut amethyst set in prong & channel setting. Total diamond weight
Category

2010s Indian Modern Solitaire Rings

Materials

Amethyst, Diamond, 14k Gold, White Gold

Sapphire Diamond Ring 3.28 Carat
Located in North Hollywood, CA
Diamond and two (2) side cushion cut old miner Diamonds with forty (40) mixed round cut stones and fifty
Category

21st Century and Contemporary Unknown Art Deco Cocktail Rings

Materials

White Diamond, Blue Sapphire, Platinum

Sapphire Diamond Ring 3.28 Carat
Sapphire Diamond Ring 3.28 Carat
$8,000 Sale Price
33% Off
1.08 Carat Yellow Diamond Engagement Ring 18 Karat in Stock
Located in Boca Raton, FL
Center Diamond Details: Approx. 1.08ctw Cushion Cut Yellow Diamond. Center diamond is SI1 in clarity
Category

21st Century and Contemporary American Engagement Rings

Materials

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

11.74 Carat Ceylon Yellow Sapphire and Diamond Ring in 18k White Gold
Located in Jesmond, Newcastle Upon Tyne
Quality Origin Sri Lanka (Ceylon) Color Yellow Cut Cushion Content 11.74 carats Dimensions 13.75mm (length
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Yellow Sapphire, White Gold

14K White Gold Diamond Vintage Ring (1 cttw, H-I Color, I1-I2 Clarity)
Located in New York, NY
. Featuring a cushion cut midst of the ring, embellished with a prong-set princess and round cut diamonds. The
Category

21st Century and Contemporary Indian Modern Fashion Rings

Materials

Diamond, White Diamond, White Gold, 14k Gold

White Gold Ring with GIA Certified One Carat Fancy Light Yellow Diamond
By Polya Medvedeva Jewellery
Located in Berlin, DE
crushed ice cushion cut fancy light yellow diamond. The ring boasts exceptional craftsmanship, including
Category

21st Century and Contemporary German Artist Engagement Rings

Materials

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

GIA Certified Tourmaline 30.87 carats with Diamond and Pearl Necklace
By Gregory Mikaelian Sons, Inc.
Located in Los Angeles, CA
14k yellow gold Fresh Water Cultured Pearl Necklace with GIA Certified Tourmaline Step Cut
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Natural Pearl, Topaz, Pearl, Tourmaline, 14k Gold, Yellow Gold

GIA Certified 6.07 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Platinum. GIA certified natural corundum simple heat only. 1 cushion cut dark blue Sapphire, approx
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Kunzite Stunning lilac colour 24.11 Carat Diamonds Pendant 18 Karat Rose Gold
Located in München, DE
mauve color—an eye-clean quality with a beautiful luster. The kunzite is cut in an oval cushion shape
Category

21st Century and Contemporary European Contemporary Pendant Necklaces

Materials

Kunzite, Diamond, 18k Gold, Rose Gold

Gubelin Certified 24.01 Carat Burma Ruby No Heat And Diamond Earrings In 18K WG
By Rewa Jewellery
Located in Bangkok, TH
approximately 1.17 carat, 4 round diamonds weighing approximately 1.74 carat and 1 round shaped diamond weighing
Category

2010s Thai Modernist Chandelier Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Ring with amethyst and brilliant cut diamonds up to 0.20ct 15.0 grams 18k gold
Located in The Hague, ZH
, please contact us for shipping. Weight 15.0 grams Set with - 1 x 1.1 cm x 1.4 cm facet-cut cushion
Category

2010s Dutch Modern Cocktail Rings

Materials

Amethyst, Diamond, 18k Gold

GIA Platinum Sapphire Diamond Unheated Pendant Vintage VS Necklace 14.13 Carats
Located in Sylvania, GA
Cut Sapphire: 7.65 Carats 14 Sparkling Diamonds VS-S1 Clarity and G-H Color: approx. 6.48 Carats
Category

20th Century Art Deco Pendant Necklaces

Materials

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

18k White Gold 5.02ctw Cushion Blue Moonstone w/ Diamond Halo Pendant Necklace
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Moonstone - Cushion Cabochon Cut - Prong Set - Blue Color
Category

21st Century and Contemporary American Pendant Necklaces

Materials

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

24.50 Carat Rube 0.30 Carat Round Brilliant Diamond 18K YG Dangling Earrings
Located in New York, NY
Title: 24.50 Carat Cushion Brilliant 0.30 Carat Round Brilliant H VS Diamond 18 Karat Yellow Gold
Category

20th Century Dangle Earrings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

4.60ct Aquamarine and Diamond 18 Carat Gold Bombé Cluster Cocktail Ring
Located in London, GB
This gorgeous ring features a rectangular cushion cut aquamarine weighing 4.60 carats mounted in a
Category

2010s Unknown Modern Cocktail Rings

Materials

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

Elongated Cushion Green Tsavorite Sapphire Onyx Diamond Art Deco Style Gold Ring
By Unbranded
Located in Oakton, VA
: Tsavorite (Certified) Shape: Emerald Cut Size: 8 x 5.5 mm. Number: 1 Weight: 1.28 Carat (approx.) Accent
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

Antique 18k Gold 0.60ct Old Mine Cushion Diamond Floral Filigree Engagement Ring
Located in Montclair, NJ
) Natural Genuine Diamond - Old Mine Cushion Cut - Bead Set - G/H Color - VS2 Clarity Diamond Carat Weight
Category

Vintage 1920s Engagement Rings

Materials

Diamond, 18k Gold

19 CTW Mixed Cut Diamond 18 Karat White Gold Modern Line Bracelet
Located in Boca Raton, FL
, princess, radiant, and cushion-cut diamonds, each weighing at least 1 carat. Set in luxurious 18-karat
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Victorian 2.02 CTW No Heat Burma Ruby Old Mine Cut Diamond 18K Gold Ring GIA
Located in Philadelphia, PA
Comprised of alternating pattern of prong set cushion cut rubies and old mine cut diamonds Rubies
Category

Antique 1890s Victorian Band Rings

Materials

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

14K Rose Gold Plated Silver 1/20 cttw Diamond 4-Stone Halo Style Stud Earrings
Located in New York, NY
embellished with shimmering round cut diamonds that are arranged in a pave setting. Simply majestic, these 1
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, Gold Plate, Rose Gold, Sterling Silver, 14k Gold

18K Yellow Gold 1/5 Ct Diamond with Yellow Citrine Smoky Quartz Dangle Earring
Located in New York, NY
shine brilliantly in a checkerboard cut in each earring. Singular round white diamonds shine on in prong
Category

21st Century and Contemporary Thai Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Citrine, Quartz, 18k Gold, Yellow Gold

18K Yellow Gold 1/5 Cttw Diamond with Yellow Citrine Black Onyx Dangle Earring
Located in New York, NY
cushion-cut heat-treated black onyx gemstone in a 4-prong setting. The diamonds in this pair total 1/5
Category

21st Century and Contemporary Thai Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Citrine, Onyx, 18k Gold, Yellow Gold

18k Yellow Gold 5.45 Carat Aquamarine and Diamond Cocktail Ring
By VR Jewels
Located in New York, NY
moving through transition and change. Designed with cushion cut aquamarine with two diamonds on each
Category

21st Century and Contemporary American Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, Yellow Gold

18 Karat Gold Ring with GIA Certified One Carat Fancy Light Yellow Diamond
By Polya Medvedeva Jewellery
Located in Berlin, DE
cushion-cut fancy light yellow diamond with a crushed ice effect. The ring is designed to perfection, with
Category

21st Century and Contemporary German Artist Engagement Rings

Materials

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

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1 Carat Cushion Cut Diamond For Sale on 1stDibs

Find the exact 1 carat cushion cut diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and white gold. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a 1 carat cushion cut diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular piece, .5 carat and 1 carat are consistently popular carat weights. Creating a 1 carat cushion cut diamond has been a part of the legacy of many jewelers, but those produced by Peter Suchy, Tiffany Co. and Alberto are consistently popular. Today, if you’re looking for a cushion cut version of this piece and are unable to find the perfect match, our selection also includes antique cushion cut and round cut alternatives. When shopping for a 1 carat cushion cut diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 1 Carat Cushion Cut Diamond?

The price for a 1 carat cushion cut diamond starts at $1 and tops out at $1,825,000 with these rings, on average, selling for $6,615.

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.  

Questions About 1 Carat Cushion Cut Diamond
  • 1stDibs ExpertSeptember 28, 2021
    Like with most diamond products, the price of a 1-carat princess cut diamond can range dramatically. On 1stDibs, find 1-carat princess cut diamond rings, earrings, necklaces and bracelets starting at $999 to $16,500.