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Round Cut 3 Carat Diamond Engagement Rings

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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

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

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

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

1.50 Carat Round Cut Diamond Engagement Ring
Located in Los Angeles, CA
round brilliant cut diamond. Surrounded by 0.75ct round cut side diamonds in a halo setting and 3 rows
Category

2010s Engagement Rings

Materials

Diamond, Gold, 14k Gold, 18k Gold, White Gold, Yellow Gold, 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

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

Diamond, White Diamond

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

3 Carat Eternity Band Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
, including platinum, 18k white gold, or 18k yellow gold. The allure of the Platinum Round Brilliant Cut
Category

2010s Italian Modern Engagement Rings

Materials

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

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

Certified Round Brilliant Cut Diamond Engagement Ring 0.91 Carat
Located in London, GB
An 18k white gold diamond ring. The round brilliant cut diamond weighs 0.91ct, is F in colour and
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, 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

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

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

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat
Located in Greensboro, NC
Diamonds Clarity: I1 (solitaire); VS1 - VS2 (accents) Color: E (solitaire); G (accents) Cuts: Round
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

2.53 Carat Round Cut Baguette Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
1940s round brilliant cut light yellow center diamond. EGL certified, in a platinum three-stone
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Brilliant Cut Diamond Tapered Baguette Ring
By Antinori Fine Jewels
Located in Rome, IT
milkiness. This large round brilliant cut diamond is certified by GIA, the world’s premier gemological
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

3 Carat Marquise Cut Diamond Engagement Ring Certified D SI1
Located in New York, NY
Malia 3 Carat D SI1 Marquise Cut Diamond Engagement Ring in 14k White Gold By Mike Nekta Center
Category

2010s American Engagement Rings

Materials

Diamond, 14k Gold, White Gold

4 Carat Round Cut Diamond Engagement Ring GIA Certified D* VVS1
Located in New York, NY
ANN SOLITAIRE DIAMOND ENGAGEMENT RING 18K WHITE GOLD GIA CERTIFIED 3 CT D* VVS1 BY MIKE NEKTA GIA
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, White Gold

White Gold Diamond Engagement Ring, 14 Karat Round Brilliant Cut 1.25 Carat
Located in Greensboro, NC
This ring is a size 7 3/4, but it can be re-sized up 2 sizes for a $25 fee. Once a ring is re-sized
Category

20th Century Unknown Engagement Rings

Materials

Diamond, 14k Gold, White Gold

EGL Certified .65 Carat Round Brilliant Cut Diamond White Gold Engagement Ring
Located in Stamford, CT
Late Art Deco 1940's diamond engagement ring. EGL certified .65ct round brilliant cut center
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Gold, 14k Gold, White 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

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

Three Row Hidden Halo Round Cut Diamond Engagement Ring 1.70 Carat
Located in Los Angeles, CA
This breath taking hidden halo engagement ring consist of 1.70 Ct. Tw. round cut diamonds. This
Category

2010s Engagement Rings

Materials

Diamond, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

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

0.25 Carat Oval Round Princess cut Diamonds Alternative Engagement Ring
By Hi June Parker
Located in New York, NY
New contemporary diamond cluster ring with three different shapes of diamonds. Why settle for one
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Gold, 14k Gold

3 Carat Cushion Cut Diamond Engagement Ring GIA Certified E VS2
Located in New York, NY
Mallory 3 Carat E VS2 Cushion Cut Diamond Engagement Ring in Platinum By Mike Nekta GIA CERTIFIED
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

3 Carat Emerald Cut Diamond Engagement GIA Certified Ring F SI1
Located in New York, NY
Briella 3 Carat K SI1 Emerald Cut Double Halo Diamond Engagement Ring in 18k White Gold By Mike
Category

2010s American Engagement Rings

Materials

Diamond, White Gold, 18k Gold

3 Carat Cushion Cut Diamond Engagement Ring GIA Certified G VS2
Located in New York, NY
Shelby 3 Carat G VS2 Cushion Cut Diamond Engagement Ring in 18k White Gold. GIA Certified. By Mike
Category

2010s American Engagement Rings

Materials

Diamond, White Gold, 18k Gold

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

18K Yellow Gold 2.31 Carat Round Diamond 3 Stone Baguette Engagement Ring
Located in Cape May, NJ
Era: New Composition: 18K Yellow Gold Primary Stone: Round Brilliant Cut Diamond Carat Weight
Category

2010s American Art Deco Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

3 Carat Oval Cut Diamond Engagement Ring GIA Certified FIP SI2
Located in New York, NY
Carat Weight: 0.84 Carats Shape: Round Brilliant Cut Setting: Shared Prong, Halo & Sidestone Metal: 18
Category

2010s American Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold, White Gold

Ruby and Diamond Ring, 14 Karat White Gold Round Cut .81 Carat Engagement
Located in Greensboro, NC
- Treatment: Heating Color: Red Cut: Round Carat: 0.59ct Natural Diamonds - Clarity: SI1 - SI2 Color: G - H
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

3/4 Carat Halo Marquise Cut Diamond Engagement Ring Yellow Gold
Located in Los Angeles, CA
Marquise Cut Halo Diamond Engagement Ring. 0.50 Carat marquise cut diamond. Surrounded by 0.25ct
Category

2010s Engagement Rings

Materials

Diamond, Gold, 14k Gold, 18k Gold, White Gold, Yellow Gold

Certified Radiant Cut Diamond and Round Diamond Engagement Ring 18 Carat Gold
Located in Hamilton, AU
sparkling 0.90 carat certified radiant cut diamond, and embellished with petite round brilliant cut diamonds
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

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

Aquamarine 8.50 Carat Bespoke 18 Karat White Gold 3 Carat Diamond Halo Ring
By Hasbani Diamonds
Located in London, GB
A bespoke magnificent 8.50 Carat Fancy Oval Cut Blue Aquamarine Dress / Engagement Ring surrounded
Category

2010s British Modern Engagement Rings

Materials

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

1.77 Carat Transitional Cut Diamond Platinum Engagement Ring
Located in Stamford, CT
1940's transitional cut round diamond engagement ring. EGL certified round transitional cut diamond
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

5.05 Carat Round Blue Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Round sapphire and diamond handmade engagement ring. Rich blue with a hint of purple round sapphire
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

GIA Certified 7.60 Carat Round Diamond Engagement Ring
By M&V Vanguard Jewelry
Located in New York, NY
Mounted in handmade custom design setting featuring Platinum 950, diamond shank with 3 rows of
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

1.04 Carat Round Diamond 3 Stone Halo Engagement Ring 18 Karat in Stock
Located in Boca Raton, FL
18k White Gold 1.04ctw Round Diamond 3 Stone Halo Engagement Ring Raymond Lee Jewelers in Boca
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

0.41ctw Round Diamond 3-Stone Engagement Ring Platinum Size 8.25
Located in McLeansville, NC
Gemstone Information: - Natural Diamonds - Total Carats - 0.41ctw Cut - Round Brilliant Color - F
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Art Deco 3/4 Carat Diamond Antique Engagement Ring
Located in Santa Barbara, CA
. The center round brilliant cut diamond grips your attention with exceptional color and clarity and
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co. Three Stone Round Brilliant Cut Diamond Platinum Engagement Ring
By Tiffany & Co.
Located in Tampa, FL
This classic Tiffany & Co. three stone diamond engagement ring features 3 round brilliant cut
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

1 Carat 3-Stone Engagement Ring
Located in Boca Raton, FL
Material: 18k White Gold Diamond Details: Approximately 1ctw princess cut diamonds. Diamonds are J
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

2.03 Carat Old Mine Brilliant Cut Diamond Platinum Engagement Ring
Located in New York, NY
This elegant platinum ring centers a sparkling EGL certified old mine brilliant cut diamond that
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Rachel Koen 0.95cttw Round Cut Diamond Engagement Ring Set Platinum
Located in New York, NY
engagement ring is encrusted with a prong set center round brilliant cut diamond weighing 0.30 carat with
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

8 Carat Round Diamond Engagement Ring 3 Stones Pear Shaped GIA Certified G VS2
Located in New York, NY
VERA -8 CARAT ROUND CUT THREE STONE PEARD DIAMOND ENGAGEMENT RING BY MIKE NEKTA GIA CERTIFIED
Category

2010s American Engagement Rings

Materials

Diamond, White Gold, 14k Gold

1.02 Carat Old European Cut Diamond Emerald Engagement Ring
Located in New York, NY
faceted cut emerald and round cut diamond accents. The top of the ring measures 10mm by 16mm. It is
Category

20th Century Engagement Rings

Materials

Diamond, Emerald, Platinum

3.60 Carat Cushion Cut Engagement Ring Natural Round Diamonds GIA Certified VS
Located in Los Angeles, CA
Gold Diamond Cut: Natural Conflict Free Cushion Cut Diamond Carat (Includes 0.60 carats of round
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold

Retro Platinum & Round Mixed Cut 0.95 Ct Diamond Engagement Ring
Located in Philadelphia, PA
. Marks: Marked with 10% IRD PLAT Ring Size: ca. 5 3/4 Gemstone Measurements: 1 Mixed Cut Round Diamond
Category

Mid-20th Century Retro Engagement Rings

Materials

Diamond, Platinum

Round Brilliant Cut 1.02 Carat Diamond 14 Karat White Gold Engagement Ring
Located in Scottsdale, AZ
2191601972 Color: D Clarity: VS Diamonds: 28 round brilliant cut = .30cttw Color: G Clarity: VS Ring Size: 6
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

TJD 1.00 Carat Round Diamond 18 K White Gold 3 Stone Vintage Engagement Ring
By TJD
Located in New York, NY
50 brilliant-cut diamonds embedded beautifully in prong and pave setting and handcrafted by our in
Category

2010s Indian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.91 Carat Round Diamond 3-Stone 18 Karat White and Yellow Gold Engagement Ring
Located in Sherman Oaks, CA
18k White & Yellow Gold Featuring One Round Brilliant Diamond And Two Trillion Cut Diamonds Total
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

3 Carat Combine Mix Shape Diamond Engagement Ring Certified Y
Located in New York, NY
Gracelynn 3 Carat Yellow Combine Mix Shape Halo Diamond Engagement Ring in 14k White Gold By Mike
Category

2010s American Engagement Rings

Materials

Diamond, Yellow Diamond, 14k Gold, White Gold

Sapphire & Diamond Engagement Ring - 14k White Gold Round Cut 1.61ctw
Located in Greensboro, NC
cut diamond accents set along the ring's shoulders to create a timelessly unique design. This ring is
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Yellow Gold Diamond Solitaire Engagement Ring - 14k Round Brilliant Cut .28ct
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): .28ct Cut: Round Brilliant Color: K Clarity: SI2 Diameter
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

3 Carat Pear Shape Diamond Engagement Ring Certified Y
Located in New York, NY
Amari 3 Carat Pear Shape Diamond Engagement Ring in 18k White Gold By Mike Nekta Center Diamond
Category

2010s American Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, White Gold

3 Carat Cushion Cut Diamond, Engagement Ring, 18K White Gold, GIA Certified
Located in New York, NY
A classic 3.01 carat Cushion cut diamond, Engagement Ring, certified by GIA as F color, SI2 clarity
Category

2010s American Art Deco Engagement Rings

Materials

18k Gold, White Gold

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Round Cut 3 Carat Diamond Engagement Rings For Sale on 1stDibs

Browse a vast assortment of round cut 3 carat diamond engagement rings for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using gold, white gold and 18k gold. Find a collection of 1508 vintage versions or 1459 modern creations for a more contemporary example of these cherished accessories. Our collection, which features older pieces for sale from the 18th Century and newer versions made as recently as the 21st Century, has proven very popular over the years. Art Deco and modern are consistently popular styles when it comes to round cut 3 carat diamond engagement rings. Tiffany & Co., Suzy Levian and Cartier each produced beautiful examples of these items that are worth considering. Today, if you’re looking for round cut round cut 3 carat diamond engagement rings and are unable to find the perfect match, our selection also includes oval cut and cushion cut alternatives. Most of our round cut 3 carat diamond engagement rings for sale are for women, but there are 718 pieces available to browse for men.

How Much are Round Cut 3 Carat Diamond Engagement Rings?

Prices for round cut 3 carat diamond engagement rings can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $647,500, while round cut 3 carat diamond engagement rings, on average, fetch $4,039.

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.