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3 Carat Round Diamond Rings

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GIA Certified 3 Carat Round Diamond Ring VVS2
By Antinori Fine Jewels
Located in Rome, IT
and vibrant sparkle! This round brilliant cut diamond is certified by GIA, the world’s premier
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

3 Carat Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Spectacular engagement ring crafted in platinum, showcasing a GIA certified round brilliant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Ideal Cut Round Diamond 3 Carat Diamond Ring
By Hearts On Fire
Located in Rome, IT
diamond weights 3 carats plus 0.50 carats of round diamond pave ring set in solid platinum
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3 Carat Round Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Embrace the unparalleled allure of this exquisite GIA certified 3 carat round cut diamond platinum
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Modern Platinum Band 3 Carat Natural Baguette & Round F VS Diamond Cocktail Ring
By Radiam Diamond Company
Located in Los Angeles, CA
Modern Platinum 3 Carat Natural Diamond Band. Set in this piece are 17 Natural F-G color Baguette
Category

2010s American Modern Band Rings

Materials

Diamond, Platinum

Aquamarine 8.50 Carat Bespoke 18 Karat White Gold 3 Carat Diamond Halo Ring
By Hasbani Diamonds
Located in London, GB
Ring 8.50 Carat Aquamarine Oval Shape (including diamond halo 19.20mm x 15.00mm) 3.00 Carat Diamond
Category

2010s British Modern Engagement Rings

Materials

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

Vivid Diamonds 3 Carat Diamond Eternity Band
By Vivid Diamonds
Located in Miami, FL
weighing approximately 3 carats total, F color, VS clarity. Each diamond was carefully selected, perfectly
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Platinum

3 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
carat Round Brilliant Cut Diamond, destined to symbolize everlasting love and commitment. This elegant
Category

2010s Italian Contemporary Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
Featured here is a fantastic round cut diamond ring with 3 carat diamond in total. The main stone
Category

2010s Italian Modern Solitaire Rings

Materials

White Diamond, Diamond, White Gold, 18k Gold

GIA Certified 3 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
3.05 carat center stone and sophisticated, diamond accented setting with subtle vintage style
Category

2010s Italian Modern Engagement Rings

Materials

White Diamond, Diamond

3 Carat Round Diamond Engagement Ring in Platinum
By Hannah Florman
Located in Boston, MA
Customizable diamond engagement ring, shown with a GIA certified 3 carat round briliant diamond
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Blue Topaz 2.20 Carat Oval 0.20 Carat Round Diamond White Gold Halo Ring
By Hasbani Diamonds
Located in London, GB
is set with 3 claws for a sparkly star effect look. This ring has a total gem weight of 2.40 Carat
Category

2010s British Modern Engagement Rings

Materials

Blue Topaz, Diamond, Topaz, White Diamond, 18k Gold, White Gold

GIA Certified 3 Carat Round Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
diamond encrusted setting, this ring is a head turner! Highlights: - Large 3.05 carat center diamond
Category

2010s Italian Modern Engagement Rings

Materials

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

Alani 3 Carat Round Brilliant Diamond Cocktail Ring
Located in New York, NY
your life. Center Earth Mined Diamond: Carat Weight: 3.29 Carats Shape: Round Brilliant Cut Ring
Category

2010s American Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

3 Carat Eternity Band Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
Introducing our bespoke, made-to-order masterpiece—a ring crafted to perfection with your
Category

2010s Italian Modern Engagement Rings

Materials

White Diamond, Diamond, Platinum, 18k Gold, White Gold, 14k Gold

Blue Topaz 2.20 Carat Oval 0.20 Carat Round Diamond Platinum Halo Ring
By Hasbani Diamonds
Located in London, GB
is set with 3 claws for a sparkly star effect look. This ring has a total gem weight of 2.40 Carat
Category

2010s British Modern Engagement Rings

Materials

Blue Topaz, Topaz, White Diamond, Diamond, Platinum

Exceptional GIA Certified 3 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
This stunning ring features an exquisite 3-carat emerald-cut diamond as its centerpiece, radiating
Category

2010s Unknown Contemporary Engagement Rings

Materials

White Diamond, Diamond, Platinum

Tiffany & Co. 3 Carat Round Brilliant Cut Diamond Platinum Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co. 3.08 ct Platinum Round Brilliant Cut Diamond Solitaire Engagement Ring. The ring
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
This exquisite ring boasts a GIA-certified 3-carat round brilliant cut diamond, showcasing
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

White Diamond, Diamond, White Gold, 18k Gold

Adley 3 Carat Round Brilliant Diamond Cocktail Ring Certified
Located in New York, NY
deserve it! Earth Mined Diamonds: Carat Weight: 2.95 Carats Shape: Round Brilliant Cut Ring: Total
Category

2010s American Cocktail Rings

Materials

Diamond, 14k Gold, White Gold

10K White Gold Ring 3/4 Carat Round-Cut Diamond Bypass Ring
Located in New York, NY
with 3/4 carats of diamonds. An assortment of round and baguette-cut diamonds adorn this piece, and
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

White Diamond, Diamond, 10k Gold, White Gold

Platinum Shayna Petite Design Round Diamond Ring 'Center 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

1.00 Carat Round White Diamond 18 KT Yellow Gold Men's Bespoke Signet Ring
By Hasbani Diamonds
Located in London, GB
1.00 Carat Round White Diamonds Men's Signet Style ring set in 18 Karat Yellow Gold. It has 16
Category

2010s British Modern Signet Rings

Materials

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

GIA Certified 3 Carat Round Brilliant Cut Diamond Tapered Baguette Ring
By Antinori Fine Jewels
Located in Rome, IT
large 3.00 carat GIA certified triple excellent diamond is beautifully white, 100% eye clean, and
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

3 Carat GIA Certificate G Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
of 0.25 carat round brilliant cut. This is a stunning diamond engagement ring set in platinum with
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

5.61 Carat 3 Row Round Diamond 18 Karat Gold Eternity Ring
By Sebastian Bernard
Located in Los Angeles, CA
This beautiful Eternity Ring is made in 18K Gold with 66 2.80 mm perfectly matched Round Brilliant
Category

2010s American Wedding Rings

Materials

Diamond, 18k Gold

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting
By Hannah Florman
Located in Boston, MA
GIA certified diamond engagement ring with 3 carat center stone, G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 14k Gold

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting
By Hannah Florman
Located in Boston, MA
GIA certified diamond engagement ring with 3 carat center stone, G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum, 14k Gold

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting
By Hannah Florman
Located in Boston, MA
GIA certified diamond engagement ring with 2 carat center stone, J color with VS1 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum, White Gold

3 Carat Round Brilliant Diamond Engagement Ring Certified D VS2
Located in New York, NY
Phoebe 3 Carat D VS2 Round Brilliant Diamond Engagement Ring in 18k White Gold By Mike Nekta
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Tiffany & Co. IDEAL CUT 3 Carat Round Brilliant Cut Diamond Platinum Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co. 3 Carat Round Brilliant Cut Diamond Platinum Ring This Tiffany & Co. Diamond
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

3 Carat Round Brilliant Diamond Solitaire Engagement Ring, GIA Certified
Located in New York, NY
Spectacular engagement ring crafted in Platinum, showcasing a GIA certified round brilliant cut
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Delicate 3 Carat Round Diamond Engagement Ring in Rose Gold
By Hannah Florman
Located in Boston, MA
GIA certified 3 carat round brilliant diamond engagement ring with G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Rose Gold

2 Row Diamond Ring 3 Carats
By Belfiore Jewelry
Located in Great Neck, NY
2 Row diamond ring set halfway in 14K white gold. The ring is set with 20 stones each weighing 0.15
Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Diamond, 14k Gold

GIA Certified 3 Carat Round Brilliant Cut Diamond Ring 18K White Gold
By Antinori Fine Jewels
Located in Rome, IT
This exquisite ring boasts a dazzling round-cut diamond, certified by the Gemological Institute of
Category

2010s Unknown Contemporary Engagement Rings

Materials

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

10K White Gold Ring 3/4 Carat Round and Baguette-Cut Diamond Bypass Ring
Located in New York, NY
with 3/4 carats of diamonds. An assortment of round and baguette-cut diamonds adorn this piece, and
Category

21st Century and Contemporary Indian Modern Fashion Rings

Materials

White Diamond, Diamond, 10k Gold, White Gold

Three 3-Stone 3.40 Carat Round Brilliant Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Rome, IT
Three 3-Stone Round Brilliant Cut Diamond Engagement Ring. The ring weighs 4.9 grams, size 4.75
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Bespoke Halo Mount for 3-5 Carat Yellow White Diamond Oval Shape Platinum Ring
By Hasbani Diamonds
Located in London, GB
features 0.13 Carat Round Diamond Fancy Intense Yellow giving this Double Halo Diamond Engagement Ring an
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Tanzanite, Topaz, Tourmaline, Turquoise, S...

GIA Certified 3 Carat D Color VS1 Clarity Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified 3 Carat D Color VS1 Clarity Round Brilliant Cut Diamond Ring
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

1.51 Carat Round Diamond 3-Stone Cluster Engagement Wedding White Gold Ring
Located in New York, NY
Certified Round Brilliant Diamonds in G color VS clarity (Near COLORLESS and very clear) set into 3 Flower
Category

Early 2000s Engagement Rings

Materials

Diamond, 14k Gold, White Gold

3 Carat Round Cut Diamond Engagement Ring EGL Certified I VS1
Located in New York, NY
TALIA ROUND CUT DIAMOND ENGAGEMENT RING in 18K WHITE GOLD BY MIKE NEKTA Center Diamond: Carat
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, White Gold

3 Carat Round Diamond Engagement Ring with Delicate Pave Setting Platinum
By Hannah Florman
Located in Boston, MA
GIA certified 3 carat round briliant diamond engagement ring with G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Diamond Solitaire Ring 18k White Gold
Located in Miami, FL
GIA certified 3.09 Carat Diamond ring. The diamond has a lot of life of sparkle and is a natural
Category

2010s Engagement Rings

Materials

Diamond, 18k Gold, White Gold

18K Yellow Gold Shayna Petite Design Round Diamond Ring 'Center- 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14K Rose Gold Shayna Petite Design Round Diamond Ring 'Center- 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

14K White Gold Shayna Petite Design Round Diamond Ring 'Center 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

18K Rose Gold Shayna Petite Design Round Diamond Ring 'Center- 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18K White Gold Shayna Petite Design Round Diamond Ring 'Center, 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

Delicate 3 Carat Round Diamond Engagement Ring in 14k Yellow Gold
By Hannah Florman
Located in Boston, MA
GIA certified 3 carat round brilliant diamond engagement ring with G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 14k Gold

.925 Sterling Silver 1/3 Carat Miracle Set Round-Cut Diamond Cocktail Ring
Located in New York, NY
Dazzle with this glamorous and intricately designed diamond cocktail ring! Brilliantly set, this
Category

21st Century and Contemporary Indian Modern Fashion Rings

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver 1/3 Carat Miracle Set Round-Cut Diamond Cocktail Ring
Located in New York, NY
Dazzle with this glamorous and intricately designed diamond cocktail ring! Brilliantly set, this
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, Sterling Silver

GIA 4.64 Carat K/VS1 Round Brilliant Diamond Platinum 3-Stone Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
A shiny 4.64 Ct Round Brilliant K/VS1 GIA Certified center Diamond set in a fine Platinum 3 Stone
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Tacori Platinum 3 Carat Round Pear Shape Diamond Wedding Ring
By Tacori
Located in New York, NY
Tacori Platinum 3 Carat Round Pear Shape Diamond Wedding Ring Luxurious in every way, this ring is
Category

2010s American Romantic Three-Stone Rings

Materials

Diamond, Platinum

Platinum Briana Diamond Ring '1/3 Carat'
Located in San Francisco, CA
A delicate Shared prong diamonds wedding band for a sparkling look. Experience the difference
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

6.80 Carat 3 Row Round Diamond Invisible Style 14 Karat Gold Eternity Ring
By Sebastian Bernard
Located in Los Angeles, CA
This beautiful Eternity Ring is made in 14K Gold with 30 3.00mm, 30 2.8 mm perfectly matched Round
Category

2010s American Wedding Rings

Materials

Diamond, 14k Gold

14K White Gold 3/4 Carat Round and Baguette-Cut Diamond Cluster Ring
Located in New York, NY
diamonds, artfully arranged to enhance their individual beauty. The 3/4 carat total weight showcases the
Category

21st Century and Contemporary Indian Modern Fashion Rings

Materials

White Diamond, Diamond, White Gold, 14k Gold

10K White Gold Round and Baguette Cut 3/4 Carat Diamond Channel Ring
Located in New York, NY
of 3/4 carats. ‘Video Available Upon Request.’ Product Features: Diamond Type: Natural White
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, 10k Gold, White Gold

14 Karat Gold Round Colorless Sapphire Vintage Diamond Ring Center-2/3 Carat
Located in San Francisco, CA
colorless white round sapphire, accented with milgrain and round brilliant diamonds. Experience the
Category

21st Century and Contemporary American More Rings

Materials

Diamond, Sapphire, Yellow Gold

10K White Gold Ring 3/4 Carat Round and Baguette-Cut Diamond Bypass Ring
Located in New York, NY
with 3/4 carats of diamonds. An assortment of round and baguette-cut diamonds adorn this piece, and
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, 10k Gold, White Gold

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3 Carat Round Diamond Rings For Sale on 1stDibs

There is a broad range of 3 carat round diamond rings for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Gold, White Gold and 18k Gold. Our selection of items includes 4914 vintage examples as well as 12156 contemporary versions. Our collection is diverse and broad-ranging, and pieces in stock date back to the 18th Century while others were produced as recently as the 21st Century. Our collection of 3 carat round diamond rings includes designs that are universally popular, but Contemporary and Modern styles, specifically, are sought with frequency. LB Exclusive, TJD and Tiffany & Co. each produced beautiful examples of these items that are worth considering. A selection of round cut, baguette cut and oval cut can be found today on these pages. There aren’t many items for men in our collection of 3 carat round diamond rings, as most of the options available are for women.

How Much are 3 Carat Round Diamond Rings?

Prices for 3 carat round diamond rings can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $160 and can go as high as $4,900,000, while 3 carat round diamond rings, on average, fetch $2,980.

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. 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

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.