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3 Carat Square Diamond

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14K Yellow Gold 1/3 Carat Square Diamond Classic Solitaire Stud Earrings
Located in New York, NY
earrings. Crafted in genuine 14 Karat gold, each earring features a mesmerizing princess cut square diamond
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

GIA Certified 3 Carat Square Radiant Trillion Cut Diamond
By Antinori Fine Jewels
Located in Rome, IT
Embrace sophistication and elegance with this GIA Certified 3.01 Carat Square Radiant Cut Diamond
Category

2010s Unknown Contemporary Engagement Rings

Materials

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

Square 3 Ct. Sapphire and Diamonds 0.60 Carats 18K White Gold Earrings
Located in New York, NY
A pair of invisibly set Square 3 ct. Sapphire and Diamonds 0.60 carats 18K White Gold Earrings. The
Category

20th Century Stud Earrings

Materials

Diamond, Sapphire, 18k Gold, White Gold

3 Carat GIA Certificate G Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke 3.00 carat cushion cut diamond engagement ring with the perfect combination of elegance
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate E Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke ring with one of the best colors and clarity center diamond, 3.00 carat cushion cut
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat E Color Square Emerald Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
A gorgeus ring featuring a 3 carat square emerald cut diamond, according to the GIA report is G
Category

2010s Unknown Modern Solitaire Rings

Materials

Emerald, Diamond, White Diamond, Platinum

Sterling Silver 3/8 Carat Princess-Cut Square Diamond Solitaire Stud Earrings
Located in New York, NY
feature 3/8 carats of lovely champagne diamonds, and the prong settings are sure to keep your precious
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

GIA Certified 3 Carat Square Radiant Cut Fancy Yellow Diamond Studs Gold
By Antinori Fine Jewels
Located in Rome, IT
An exquisite pair of GIA certified fancy yellow radiant cut diamond earrings set in solid 18 carats
Category

2010s Italian Modern Clip-on Earrings

Materials

Diamond, Yellow Diamond, Gold, 18k Gold

14K Yellow Gold 3/8 Carat Square Diamond Classic Solitaire Stud Earrings
Located in New York, NY
earrings. Crafted in genuine 14 Karat gold, each earring features a mesmerizing princess cut square diamond
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

10K Yellow Gold 3 Carat Lab Princess Cut Ruby & Diamond 3 Stone Square Ring
Located in San Jacinto, CA
10K Yellow Gold 3 Carat Lab Princess Cut Ruby & Diamond 3 Stone Square Ring This beautiful ring
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Ruby, 10k Gold, Yellow Gold

10K White Gold 3/4 Carat Diamond Composite Square Stud Earrings
Located in New York, NY
, each earring features a squared composite of 4 sparkling princess-cut diamonds. Radiant with 3/4 ct
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, White Gold

10K White Gold 3/4 Carat Diamond Composite Square Stud Earrings
10K White Gold 3/4 Carat Diamond Composite Square Stud Earrings
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H 0.24 in W 0.24 in L 0.63 in
3 Carat E Color VS Emerald Square Diamond Cut 18K White Gold Ring
By Antinori Fine Jewels
Located in Rome, IT
This exquisite ring features a stunning 3-carat emerald square-cut diamond, certified by the
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

MADE IN ITALY GIA Certified 3 Carat Square Radiant Fancy Yellow Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified Square Radiant Fancy Yellow Diamond Ring
Category

2010s Modern Engagement Rings

Materials

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

10K Yellow Gold 3/4 Carat Princess-Cut Diamond Composite Square Stud Earrings
Located in New York, NY
, each earring features a squared composite of 4 sparkling princess-cut diamonds. Radiant with 3/4 ct
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, Yellow Gold

10K Rose Gold 1/3 Carat Princess Cut Diamond Composite Square Shape Ring
Located in New York, NY
striking style showcases a square-shaped composite of petite princess-cut diamonds. The diamonds are
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, 10k Gold, Rose Gold

14K White Gold 1/3 Carat Square Near Colorless Diamond Solitaire Stud Earrings
Located in New York, NY
earrings. Crafted in genuine 14 Karat gold, each earring features a mesmerizing princess cut square diamond
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

5.73 Carat Square Ruby Diamond Gold Hinged Bangle Bracelet
Located in Stamford, CT
Ruby and diamond bangle bracelet. Alternating rows of 21 square shape rubies and 24 round cut
Category

20th Century Bangles

Materials

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

Peter Suchy GIA Certified 2.04 Carat Square Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Square cut diamond engagement ring. This GIA certified 2.04 carat square emerald cut center diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

14K Yellow Gold 3 1/5 Carat Diamond ¾ Square Grid Huggy Style Stud Earrings
Located in New York, NY
whopping 50 individual stones. The earrings have 3/4 square grids with invisible set, princess cut diamonds
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

10K White Gold 3/4 Carat Princess-Cut Diamond Composite Square Stud Earrings
Located in New York, NY
, each earring features a squared composite of 4 sparkling princess-cut diamonds. Radiant with 3/4 ct
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, White Gold, 10k Gold

Emerald And Diamond Ring With Two Square Cut Diamonds Of 1.6 Carats
Located in London, GB
cut diamonds of 1.6cts. The square shaped sides with graduating baguette shoulders. The whole outlined
Category

1990s Greek Signet Rings

Materials

Emerald, Diamond

White Gold Sapphire & Diamond Scroll Band - 14k Square 1.06ctw Ring Sz 5 3/4
Located in Greensboro, NC
Carat(s): .92ctw Cut: Square Color: Blue Natural Diamonds Carat(s): .14ctw Cut: Round Brilliant Color
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

TJD 3 Carat Round & Princess Diamond 18 K White Gold Square Designer Earrings
By TJD
Located in New York, NY
carat natural diamond and secures comfortably in post backs and omega clip.
Category

21st Century and Contemporary Hoop Earrings

Materials

Diamond, White Gold

3 Carat Rubies and Diamond Stud Earrings
By Antinori Fine Jewels
Located in Rome, IT
Round, Baguette, & Princess Cut Diamonds & Square Cut Red Ruby Halo Stud Earrings The earrings
Category

2010s Italian Modern Dangle Earrings

Materials

Diamond, White Diamond, Ruby, 14k Gold, Yellow Gold

Estate 3 Ct Ruby & 3 Ct Diamonds Square Post Earrings 18 Karat Yellow Gold 13.5G
Located in New York, NY
beauty of ruby and diamonds. Color of ruby is fabulous. Estate 3 Ct Ruby & 3 Ct Diamonds Square Post
Category

2010s Stud Earrings

Materials

Diamond, Ruby, Yellow Gold, 18k Gold

18K Yellow Gold 3 MM Square Mozambique Ruby Channel-set Diamond Hoop Earrings
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
18 karat gold 3 mm square mozambique ruby channel-set diamond hoop earrings. Adorn yourself in the
Category

21st Century and Contemporary Indian Contemporary Hoop Earrings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Classic 1ct. Square Modified Brilliant Solitaire Diamond Ring
Located in רמת גן, IL
diamonds G colour VVS1 clarity, Cut: Excellent Total carat weight: 1tcw Size: EU 54 (size is adjustable
Category

2010s Israeli Loose Gemstones

Materials

Diamond

18K Yellow Gold 3 MM Square Channel-Set Brazilian Emerald Diamond Hoop Earrings
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Setting Type: Channel Stone cut: Step Cut Squares Diamond Details: Total Carats: 0.27 cts Diamond Quality
Category

21st Century and Contemporary Indian Art Deco Hoop Earrings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

GIA Certified 3 Carat Cushion Cut Fancy Diamond Studs
By Antinori Fine Jewels
Located in Rome, IT
Large 3.02ct diamond pair - Both GIA certified - Bright white G color - Eye clean with SI2
Category

2010s Italian Modern Clip-on Earrings

Materials

Diamond, Yellow Diamond, Platinum

1.00 Carat Round White Diamond 18 KT Yellow Gold Men's Bespoke Signet Ring
By Hasbani Diamonds
Located in London, GB
round brilliant cut diamonds which gives the ring square shape. Size UK - T, US - 9 3/4, color H
Category

2010s British Modern Signet Rings

Materials

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

4.20 Ct 3 Row Asscher Cut 'Square Emerald Cut' Diamond Anniversary Ring
By Sebastian Bernard
Located in Los Angeles, CA
Asscher Cut (Square Emerald Cut) Diamonds Set in Shared Prong Mode. The diamonds are VS Clarity E to F
Category

2010s American Wedding Rings

Materials

Diamond, 14k Gold

5.31 Ct 3 Row Asscher Cut 'Square Emerald Cut' Diamond Anniversary Ring
By Sebastian Bernard
Located in Los Angeles, CA
Asscher Cut (Square Emerald Cut) Diamonds Set in Shared Prong Mode. The diamonds are VS Clarity E to F
Category

2010s American Wedding Rings

Materials

Diamond, 14k Gold

New Platinum 18k Gold 1.64ct GIA Princess Diamond W/ Square Emerald 3 Stone Ring
Located in Montclair, NJ
diamond solitaire prong set at the center and is flanked on either side with a very fine quality square
Category

2010s North American Three-Stone Rings

Materials

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

10K White Gold 3/4 Carat Diamond Stud Earrings
Located in New York, NY
gold classic squared design formed by 4 diamonds in each earring. It comes with a push back. Marvelous
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, White Gold

10K White Gold 3/4 Carat Diamond Stud Earrings
10K White Gold 3/4 Carat Diamond Stud Earrings
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H 0.28 in W 0.28 in L 0.6 in
Tiffany & Co. True 3 Carat Radiant Brilliant Cut Diamond Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co.True Cut Square Radiant Brilliant Cut Diamond Solitaire Engagement Ring. The ring
Category

2010s American Engagement Rings

Materials

Diamond, White Diamond

3 Carat Tanzanite and 2 Carat Diamond Heart Pendant/ Necklace 18 Karat Gold
Located in New York, NY
the necklace is 9 Grams . Tanzanite Weight approximately 3 Carats Diamond Weight approximately 2.0
Category

2010s Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold, White Gold

3 Carat Tanzanite and 2 Carat Diamond Heart Pendant/ Necklace 18 Karat Gold
Located in New York, NY
the necklace is 9 Grams . Tanzanite Weight approximately 3 Carats Diamond Weight approximately 2.0
Category

2010s Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Peter Suchy 1.29 Carat Square Round Diamond White Gold Dangle Earrings
By Peter Suchy
Located in Stamford, CT
Dangle diamond earrings. Two Old European round diamonds totaling 1.29cts set in 14k white gold 3
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, Gold, 14k Gold, White Gold

10K White Gold 3/4 Carat Composite Diamond Stud Earrings
Located in New York, NY
Classic and elegant, these 10k white gold stud earrings feature 3/4ct TDW of diamonds and are
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, White Gold, 10k Gold

10K White Gold 3/4 Carat Composite Diamond Stud Earrings
10K White Gold 3/4 Carat Composite Diamond Stud Earrings
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H 0.2 in W 0.2 in L 0.6 in
GIA Certified 3 Carat Unheated Red Spinel Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
beholder with its vibrant play of light. The square radiant cut has been executed with precision, resulting
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Spinel, Platinum

1.32 Carat Square Columbian Emerald & Diamond Ring in Platinum
Located in Chicago, IL
one. The stylishly placed baguette diamonds make this 3-stone ring inexplicably divine! We only use
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

Ella Gafter Square Diamond Cocktail Ring
By Ella Gafter
Located in New York, NY
The band features 3 rows of square cut diamonds (7.28 carats) in a geometric design, flanked by 2
Category

21st Century and Contemporary Italian Artist Band Rings

Materials

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

Certified 14K Yellow Gold 3/8 Ctw Square Diamond 4-Prong Solitaire Stud Earrings
Located in New York, NY
. With a total diamond weight of 3/8 carat, these gems radiate a subtle yet enchanting sparkle. The L-M
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

3 Carat Fancy Intense Yellow Radiant Diamond Ring
Located in New York, NY
3ct Fancy Intense Yellow Square Radiant Cut Eye clean Set in Platinum and 18kt Yellow Gold with
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

Cellini GIA Certified 3 Stone Square Emerald Cut E color Diamond Ring
By Cellini
Located in New York, NY
This classic and enchanting ring features a 1.59 carat square emerald diamond of E color and VVS2
Category

1990s American Engagement Rings

Materials

Diamond, Platinum

3 Carat Tanzanite and 2 Carat Diamond Two Heart Pendant/ Necklace 18 Karat Gold
Located in New York, NY
3 carats of fine quality of Tanzanite pendant surrounded by brilliant round cut Diamonds all
Category

2010s Drop Necklaces

Materials

Diamond, Tanzanite, 18k Gold, White Gold

White Gold Sapphire & Diamond Ring - 14k Square .32ctw Promise
Located in Greensboro, NC
Information Natural Sapphire Treatment: Heating Carat(s): .30ct Cut: Square Color: Blue Natural Diamonds
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

0.37 Carat Square Cut Blue Sapphire and Round Diamond 18 Karat White Gold Ring
Located in New York, NY
& Grace Ring. The 18k White Gold jewelry boasts Square Cut Prong Setting Genuine Ruby (3 pcs) 0.37 Carat
Category

20th Century Chinese Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Faye Kim Platinum Aquamarine Diamond 3-Stone Ring
By Faye Kim
Located in Westport, CT
Diamonds .51 Carats twt Finished bezel 9.53 x 11.08mm Shank 4.8 x 3.8mm Size 6.75 - Can be resized Photos
Category

2010s American Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

.925 Sterling Silver 3/4 Carat Color-Treated Blue Diamond Dangle Earrings
Located in New York, NY
A pair of diamond and sterling silver square dangle earrings. Each earring features a central
Category

21st Century and Contemporary Indian Contemporary Dangle Earrings

Materials

Diamond, White Diamond, Blue Diamond, Sterling Silver

Platinum & Rose Gold 7.05 Carat Diamond Solitaire Square Halo Ring
Located in METAIRIE, LA
Completely hand-fabricated of Platinum, featuring a focal 7.05 carat Round Brilliant cut Natural
Category

Vintage 1980s Solitaire Rings

Materials

Diamond, Platinum, Rose Gold

.925 Sterling Silver 1/3 Carat Diamond Crisscross Engagement Ring Bridal Set
Located in New York, NY
Surprise your beautiful bride with stunning natural diamonds! This 1/3 cttw round diamond
Category

21st Century and Contemporary Indian Modern Bridal Rings

Materials

Diamond, White Diamond, Sterling Silver

Exquisite Ring with a Dazzling 1.01 carat Square Emerald Natural Diamond
Located in רמת גן, IL
This exquisite split shank ring features a dazzling 1.01 carat square emerald natural diamond
Category

2010s Israeli Engagement Rings

Materials

Diamond

Luxle 14k Gold 1/3 Carat T.W. Huggie Diamond Hoop Earrings
Located in New York, NY
The 0.31 carat round single-cut and square princess-cut diamonds set with precision in 14K Yellow
Category

2010s Contemporary Hoop Earrings

Materials

Diamond, 14k Gold, Yellow Gold

EGL 5.05 Carat K/VS2 Cushion Diamond 18K 3-Stone Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
gold 3 stone ring with 2 1 carater cushions on the side. Total diamond weight of 2.01 Ct. on the side
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k Gold

Vintage Aquamarine Diamond Trilogy Ring in 3 Carat Aqua
Located in Kendal, GB
approx. 3ct with two dazzling trillion cut diamonds on each shoulder. The diamonds are approx. 0.90ct
Category

Late 20th Century Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Platinum

White Gold Sapphire & Diamond Flower Cluster Pendant - 14k Square .32ctw Blossom
Located in Greensboro, NC
): .32ctw Cut: Square Color: Blue Natural Diamond Cut: Single Stone Note: (one small accent) Total Carats
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

10K White Gold 3/4 Carat Diamond Composite Stud Earrings
Located in New York, NY
white gold classic squared design is framed with 4 diamonds in each earring. It comes with a push back
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, White Gold

10K White Gold 3/4 Carat Diamond Composite Stud Earrings
10K White Gold 3/4 Carat Diamond Composite Stud Earrings
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H 0.28 in W 0.28 in L 0.6 in
.94 Carat Princess Cut Diamond Engagement Ring, 14 Karat White Gold Square Halo
Located in Greensboro, NC
This ring is a size 6 1/2 - 6 3/4, but it can be re-sized up 2 sizes for a $25 fee. Once a ring is
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, 14k Gold, White Gold

10K White Gold 1/3 Carat Diamond Double Triangle Composite Stud Earrings
Located in New York, NY
Stand out with these stunning geometrical shaped studs. Shimmering princess cut diamonds in an
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, White Gold

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3 Carat Square Diamond For Sale on 1stDibs

Surely you’ll find the exact 3 carat square diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Gold, White Gold and 18k Gold — can elevate any look. Our collection of these items for sale includes 363 vintage editions and 475 modern creations to choose from as well. You’re likely to find the perfect 3 carat square diamond among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those produced as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Creating a 3 carat square diamond has been a part of the legacy of many jewelers, but those produced by TJD, Tiffany & Co. and Sophia D are consistently popular. See these pages for a square cut iteration of this accessory, while there are also round cut cut and emerald cut cut versions available here, too. There aren’t many items for men if you’re seeking a 3 carat square diamond, as most of the options available are for women and unisex.

How Much is a 3 Carat Square Diamond?

On average, a 3 carat square diamond at 1stDibs sells for $4,863, while they’re typically $295 on the low end and $1,045,000 for the highest priced versions of this item.
Questions About 3 Carat Square Diamond
  • 1stDibs ExpertSeptember 28, 2021
    A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.
  • 1stDibs ExpertFebruary 27, 2024
    In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
  • 1stDibs ExpertFebruary 13, 2023
    Whether a 3-carat diamond is considered big is largely a matter of personal opinion. The average diamond is 1 to 2 carats in size. On 1stDibs, shop a selection of diamond jewelry.