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3ct Round Diamond Solitaire

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1.78 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.78 carat diamond and platinum solitaire ring; part of our diverse
Category

Vintage 1910s Unknown Solitaire Rings

Materials

Diamond, Platinum

Solitaire Ring with 1.50 Carat Round Natural Diamond in G VS2 -Egl USA
Located in רמת גן, IL
A beautiful classic solitaire ring with a dazzling 1.50 carat round brilliant cut natural diamond
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold

0.50 Carat Natural Round Cut Diamond Solitaire Ring G SI 14 Karat White Gold
Located in New York, NY
0.50 Ct Natural Round Cut Diamond Engagement Ring G SI 14K White Gold 100% Natural Diamonds, Not
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

0.50 Carat Natural Round Cut Diamond Solitaire Ring G SI 14 Karat White Gold
Located in New York, NY
0.50 Ct Natural Round Cut Diamond Engagement Ring G SI 14K White Gold 100% Natural Diamonds, Not
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Antique Diamond and Yellow Gold Solitaire Ring Circa 1920
Located in Jesmond, Newcastle Upon Tyne
antique diamond solitaire ring has been crafted in 18k yellow gold with a platinum setting. The pierced
Category

Vintage 1920s French Solitaire Rings

Materials

Diamond, Yellow Gold

Vintage 1.12 Carat Diamond and Yellow Gold Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
, fine and impressive vintage diamond solitaire ring has been crafted in 18k yellow gold with an 18k
Category

Vintage 1980s Unknown Solitaire Rings

Materials

Diamond, White Gold, Yellow Gold

Beautiful 18k Rose Gold Solitaire Ring with 0.4ct Natural Diamond GIACertificate
Located in רמת גן, IL
A classic stylish solitaire ring with a dazzling 0.4-carat round brilliant diamond. The jewelry is
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

Antique 1.24 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.24 carat (total) diamond solitaire ring in platinum; part
Category

Vintage 1930s Unknown Solitaire Rings

Materials

Diamond, Platinum

Contemporary Sculptural 18K Yellow Gold Red Garnet White Diamond Solitaire Ring
By Maria Kotsoni
Located in Nicosia, CY
stunning unisex solitaire ring, comes in a highly polished finish and features a central 3 Ct Red Garnet as
Category

2010s Cypriot Modern Solitaire Rings

Materials

White Diamond, Garnet, Yellow Gold

12.30 Ct Australian Opal Diamond Large Solitaire ring
Located in Napoli, IT
the viewer Shoulders are enriched by baguette cut Diamonds and round cut approx .50 Ct in TCW all
Category

Mid-20th Century Italian Contemporary Solitaire Rings

Materials

Diamond, Opal, 18k Gold

Antique 1.28 Carat Diamond and Platinum Solitaire Ring Art Deco, circa 1935
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 1.28 carat diamond and platinum solitaire style engagement ring; part
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, Platinum

18k Yellow Gold Solitaire Vintage Ring with 0.10 Carat Weight Natural Diamond
Located in רמת גן, IL
A beautiful solitaire ring with a dazzling 0.1 carat round brilliant diamond. The jewelry is made
Category

2010s Singaporean Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Antique 1.62 Carat Diamond and 18k White Gold Solitaire Ring, circa 1935
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.62 carat round brilliant cut diamond and 18k white gold solitaire
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, White Gold

Antique 1.24 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.24 carat diamond and platinum solitaire engagement ring; part of
Category

20th Century Unknown Solitaire Rings

Materials

Diamond, Platinum

Classic 18K Yellow Gold Solitaire Ring with 1.18 ct Natural Diamond- GIA Cert
Located in רמת גן, IL
jewelry box. -1 diamond main stone of 1.18 ct. cut: round brilliant color: J clarity: VVS2 cut grade: EX
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Retro 1.50 Ct Old European Cut Diamond VVS Solitaire Ring
Located in Napoli, IT
quite different from all others Diamond is round old European cut od 1.25 Ct weighted off mount – it in
Category

Vintage 1940s European Retro Solitaire Rings

Materials

Diamond, 18k Gold

Art Deco Style 1.10 Ct Diamond Sapphire Solitaire Platinum Ring
Located in Napoli, IT
round being hand cut – rated as J SI Diamond on shoulders are .12 Ct with .60 Ct natural Sapphires
Category

Vintage 1980s European Contemporary Solitaire Rings

Materials

Diamond, Sapphire, Platinum

Real 1.13 Carat Solitaire Diamond Ring 18 Karat White Gold Handmade Fine Jewelry
By Spectrum Jewels
Located in IN
. :- 1.13 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Ring Size :- 7 US & All size available
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, White Gold, 18k Gold

Antique German Ring 3ct Aquamarine solid 18K Gold Ø 6.75 US /4.4gr
Located in SE
Aquamarine stone 10 mm x 8 mm x 4.6 mm / ca. 3 ct ct, color light Blue with tint of Green. The Crown is 16
Category

Vintage 1930s German Art Deco Solitaire Rings

Materials

Aquamarine, 18k Gold

0.1 Carat SI Clarity HI Color Solitaire Diamond Ring 18 Karat White Gold Jewelry
Located in IN
. :- 0.10 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Ring Size :- 7 US & All size available
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

1.96 Carat SI Clarity HI Color Solitaire Diamond Band Ring 14 Karat White Gold
Located in IN
Diamond Wt. :- 1.96 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Ring Size :- 7 US & All size
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

2 Carat SI Clarity HI Color Solitaire Diamond Ring 18 Karat White Gold Jewelry
By Spectrum Jewels
Located in IN
Item Code :- SER-21936 Gross Wt. :- 4.64 gm 18k White Gold Wt. :- 4.24 gm Diamond Wt. :- 2.02 Ct
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Classic 0.53ct Round Brilliant Diamond Ring set in 18K White Gold
Located in רמת גן, IL
: Round Brilliant color: E clarity: VVS2 cut grade: VG 18 diamond side stones of total: 0.3 ct. cut
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

PHILIPPE SPENCER 3.5mm COLORLESS Diamond in 22K and 20K Gold Solitaire
By PHILIPPE SPENCER
Located in Key West, FL
PHILIPPE-SPENCER - 3.5mm COLORLESS (D-F) Diamond, .18 Ct. wrapped in Pure 22K Gold Bezel with
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

Diamond, Gold, 22k Gold

PHILIPPE SPENCER .40 Ct. Yellow Diamond in 22K and 20K Gold Solitaire Ring
By PHILIPPE SPENCER
Located in Key West, FL
PHILIPPE-SPENCER - .40 Ct. Natural Yellow Rose Cut Diamond wrapped in 22K Gold Bezel with Solid
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

Yellow Diamond, Gold, 22k Gold

2 Carat Three Row Baguette & Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
weight & 34 Round Brilliant Cut diamonds weighing approximately 0.48 ct. The diamonds are F-G in color
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Platinum

3 Carat Natural Cushion Cut Emerald & 2 Solitaire Diamond Ring 14 Kt Yellow Gold
Located in New York, NY
A classic, ring 3 Carat Natural Cushion Cut Fine Emerald from Brazil & 2 solitaire Diamond
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

7.3 Carat Oval Ruby Solitaire Ring in White Gold with Diamond Accents
Located in Sherman Oaks, CA
treatment, with glass & flux residue Thirty-two bright cut & bead set round brilliant cut diamonds Measuring
Category

Early 2000s American Modern Solitaire Rings

Materials

Ruby, 18k Gold

Natural 0.56 Carat Pear & Round Diamond Cuff Ring 18 Karat White Gold Jewelry
By Spectrum Jewels
Located in IN
. :- 0.56 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Ring Size :- 7 US & All size available
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Estate 1.85 Ct Round and Baguette Cut 18 KT ring
Located in Napoli, IT
: none/worn Gems: 1 Round Brilliant cut diamond of approx .95 Ct I/J color I1 clarity (agd 6.5 mm.) – 10
Category

Vintage 1970s European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Beautiful 18K White Gold Ring with 0.15 ct Natural Diamonds
Located in רמת גן, IL
Stunning solitaire ring made from 18k white gold with 0.15 carats of a round brilliant diamond
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Marvelous 18k White Gold Engagement Ring w/ 1ct Natural Diamonds IGI Certificate
Located in רמת גן, IL
A sophisticated classic solitaire ring with a dazzling 1-carat round brilliant diamond. The jewelry
Category

2010s Israeli Solitaire Rings

Materials

Diamond, White Gold

Classic 18K White Gold Ring with 0.74 ct Natural Diamonds- GIA Certificate
Located in רמת גן, IL
diamond main stone of 0.50 ct. cut: round brilliant color: F clarity: VS1 -20 diamond side stones of
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Exquisite Brilliance: 0.7ct D Color Diamond Ring with Cascading Light
Located in רמת גן, IL
carat round brilliant natural diamond, boasting exceptional D color and VVS1 clarity. Its brilliance
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Beautiful 18K White Gold Ring with 0.95 ct Natural Diamonds- AGS Certificate
Located in רמת גן, IL
Stunning solitaire with a diamond ring made from 18k white gold with 0.95 total carats of round
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Classic 18K Yellow Gold Ring with 0.53 ct Natural Diamonds- GIA Certificate
Located in רמת גן, IL
Stunning solitaire ring made from 18k yellow gold with 0.53 carats of a round brilliant diamond
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Classic 18K White Gold Ring with 0.40 ct Natural Diamonds- GIA Certificate
Located in רמת גן, IL
Stunning solitaire diamond ring made from 18k white gold with 0.40 carat of a round brilliant
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 2.20ct Fancy Light Brown Yellow Diamond Ring 14kt Gold
Located in New York, NY
(GIA Report attached) 3ct baguette & round diamond accents. G-H color, Vs-2 clarity. 14kt white
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Beautiful 18K Yellow Gold Ring with 0.54 ct Natural Diamonds, GIA Certificate
Located in רמת גן, IL
A beautiful classic solitaire ring with a dazzling 0.54 carat round brilliant cut natural diamond
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

14k Yellow Gold Orange Sapphire Ring with Diamonds
By Avanti
Located in Carrollton, TX
attention. The mounting is set with brilliant round diamonds around the top and profile. The warm orange
Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

Beautiful 18K White Gold Ring with 0.10 ct Natural Diamond
Located in רמת גן, IL
Stunning ring made from 18k white gold with 0.10 carats of a round brilliant diamond. This ring
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Sparkling 18K Rose Gold Ring with 0.40 Ct Natural Diamonds, GIA Cert
Located in רמת גן, IL
A stunning solitaire ring with a dazzling 0.40 carat round brilliant diamond in F VS2 with ideal
Category

2010s Singaporean Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

20k Yellow Gold Knot Modern Ring w/ 0.15 total carat Natural Diamonds
Located in רמת גן, IL
A beautiful ring with a dazzling 0.15 carat round brilliant diamond. The jewelry is made of 20k
Category

2010s Singaporean Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 6.00 Carats Diamonds 18K Gold Ring
Located in Massafra, IT
This stunning ring is an absolute showstopper . Featuring a magnificent each 3 carat of Diamonds
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design. Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category

2010s Italian Contemporary Solitaire Rings

Materials

White Diamond, Gold, 18k Gold, White Gold

Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design. Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category

2010s Italian Contemporary Solitaire Rings

Materials

White Diamond, Gold, 18k Gold, White Gold

Beauvince Illumina Ring 8.85 Carat Pear Shape Fancy Yellow GIA Diamond
By Beauvince Jewelry
Located in New York, NY
Side Diamonds Shapes: Round, Half Moon & Shield Side Diamonds Weight: 2.87 ct Side Diamonds Color
Category

2010s Solitaire Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

0.75 Ct Natural Pink Sapphire & 0.50 Ct Diamond Ring in 18 Karat White Gold
Located in New York, NY
A classic, Ring 0.75 Ct Oval Pink Sapphire & 0.50 Ct Diamond Ring in 18 Karat White gold. Natural
Category

Early 2000s Solitaire Rings

Materials

Diamond, Pink Sapphire, 15k Gold, 18k Gold, White Gold

Glamorous 0.87ct Halo Diamond Ring in 18K White Gold
Located in רמת גן, IL
sophistication. Shimmering alongside the center stone are 34 round diamonds totaling 0.34 carats, each boasting
Category

2010s Israeli Solitaire Rings

Materials

Diamond, White Gold

Captivating 1.82 total carat of Tanzanite and Natural Diamonds Ring
Located in רמת גן, IL
diamond side stones of total: 0.76 ct. cut: Round color: E-F clarity: VVS cut grade: G total carat
Category

2010s Israeli Solitaire Rings

Materials

Diamond, Tanzanite, White Gold

Beauvince Luz Ring 0.56 Carat Pear Shape Fancy Yellow SI2 Diamond in White Gold
By Beauvince Jewelry
Located in New York, NY
Side Diamonds Shape: Round Side Diamonds Weight: 1.23 ct Side Diamond Color: H Side Diamond Clarity
Category

2010s Contemporary Solitaire Rings

Materials

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

EFFY Blue Topaz 15.30 ct & Diamond .85 ct in 14k White Gold
By Effy
Located in Laguna Hills, CA
Topaz, accented by 3/8 ct. t.w. Sparkling diamonds. The 16.00 x 11.76 x 9.50 mm gemstone is expertly cut
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Topaz, Blue Topaz, Diamond, 14k Gold, White Gold

Natural Diamond Ring 0.11 Carats 18 Karat Rose Gold Engagement Ring
Located in Antwerpen, BE
Rose Gold Weight:2.85 Grams Gemstone: 3 Natural Diamonds Shape: Baguette/ Round Total Carat Weight
Category

2010s Belgian Modern Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

Natural Diamond Ring 0.11 Carats 18 Karat Yellow Gold Engagement Ring
Located in Antwerpen, BE
Yellow Gold Weight:2.85 Grams Gemstone: 3 Natural Diamonds Shape: Baguette/ Round Total Carat Weight
Category

2010s Belgian Modern Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Antiquee Ring 0.3ct Emerald 0.4ctw Diamonds solid 18K Gold Silver Ø US6.25 /3.2g
Located in SE
. The Crown is 17 mm x 13 mm x 3 mm deep. Natural Emerald of oval diamond cut 5 mm x 4 mm x 3 mm deep
Category

Vintage 1930s European Art Deco Solitaire Rings

Materials

Diamond, Emerald, Silver, 18k Gold

Antique German Halo Ring natural 1.25ct Sapphire Diamonds solid 14K Gold Ø 5US /
Located in SE
.1.25 ct. 12 Diamonds, all of the old hand rose cut circa Ø 1.5 mm / 0,02 ct each / ca. 0.25 ctw / total
Category

Vintage 1930s German Art Deco Solitaire Rings

Materials

Diamond, Sapphire, 14k Gold

Antique Halo Ring 0.6ct Sapphire 0.32ct Diamonds solid 18K Gold Ø12.5US/ 7.3 gr
Located in SE
, measures: 5 mm x 4 mm x 3 mm deep / ca. 0.6 ct. 8 Diamonds, all of rose cut circa Ø 2 mm / 0,04 ct each
Category

Early 20th Century European Art Deco Solitaire Rings

Materials

Diamond, Sapphire, Silver, 18k Gold

Antique European Ring 0.25ct Diamond solid 14K Yellow Gold Ø 5US /1.3 gr
Located in SE
shoulders. Old European cut Diamond in White Gold bezel measures Ø 4 mm x 2.2 mm deep / about 0.25 ct. Color
Category

Vintage 1920s German Art Deco Solitaire Rings

Materials

Diamond, 14k Gold, Silver

Antique German Cluster Ring Diamonds 14K Yellow Gold Silver Ø US7.5/ 6 gr
Located in SE
toned Gold with Silver crown holding 7 eight-cut Diamonds. The central setting can be rotated around
Category

Vintage 1920s German Art Deco Solitaire Rings

Materials

Diamond, Yellow Sapphire, Silver, 14k Gold

Antique German Ring 0.5 ct. Diamond solid 14K Yellow Gold Silver Ø US7.5 / 1.9gr
Located in SE
axes x 3 mm deep with fancy radiant cut Diamond stone (natural) measuring 4.25 x 3.25 mm x 1mm deep
Category

Vintage 1930s German Art Nouveau Solitaire Rings

Materials

Diamond, 14k Gold, Silver

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3ct Round Diamond Solitaire For Sale on 1stDibs

You are likely to find exactly the 3ct round diamond solitaire you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of gold, white gold and 18k gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 3ct round diamond solitaire may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. A 3ct round diamond solitaire from Tiffany & Co., Oshi Jewels and Suzy Levian — each of whom created a beautiful version of this treasured accessory — is worth considering. A round cut version of this piece has appeal, but there are also cushion cut and old european cut versions for sale. There aren’t many items for men if you’re seeking a 3ct round diamond solitaire, as most of the options available are for women and unisex.

How Much is a 3ct Round Diamond Solitaire?

The price for a 3ct round diamond solitaire starts at $1 and tops out at $235,000 with these rings, on average, selling for $3,190.