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3 Carat Solitaire Rings

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Carat Weight: 3 Carat
GIA Certified 3 Carat Oval Baguette Diamond Ring Made in Italy
Located in Rome, IT
GIA certified oval diamond with side baguette diamonds. Mounted in 18 carats white gold. The main stone weights 3 carats.
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

3.15 Carat Natural Burma Cabochon Ruby and 1.79 Carat Diamond 18 Karat Gold Ring
Located in New York, NY
3.50 Ct Natural Burma Cabochon Ruby & 1.8 Ct Diamond 18 Karat Yellow Gold Ring Three & Half Carat of very clean natural Burma Ruby Cabochon , Beautiful Color and very clean Ruby The...
Category

Early 2000s 3 Carat Solitaire Rings

Materials

Ruby, Diamond, 18k Gold, Yellow Gold

Massimo Pinardi Gems_Hunter Gem Ruby Ring Pigeon Blood No Heat
Located in Milano, IT
GEM quality 3,21 ct Ruby setted in a Platinum and Yellow hand crafted in Italy mounting, surrounded by 2 white diamond triangles The stone is VIVID RED Pigeon Blood Type, very clean...
Category

2010s Italian 3 Carat Solitaire Rings

Materials

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

Unheated Violet Sapphire Gypsy Ring 3.41 Carat Oval
Located in Beverly Hills, CA
Unisex Gypsy platinum ring set with a remarkable 3.41 carat unheated light violet fancy Sapphire cushion. Matte finish. Ring size 8.25. Resizing is complementary upon request. The C....
Category

21st Century and Contemporary American Contemporary 3 Carat Solitaire Rings

Materials

Sapphire, Platinum

Indicolite Tourmaline Gypsy Ring 3.28 Carat Cushion
Located in Beverly Hills, CA
Sensational unisex Gypsy platinum ring set with a 3.28 carat Indicolite Tourmaline cushion. Ring size 8.25. Resizing is complementary upon request. Crafted by extremely skilled hands...
Category

21st Century and Contemporary American Contemporary 3 Carat Solitaire Rings

Materials

Tourmaline, Indicolite, Platinum

Tiffany & Co. Legacy Cushion Diamond Engagement Solitaire Platinum Ring
Located in Rome, IT
Legacy Cushion Brilliant Cut Diamond Engagement Ring. The ring weighs 7.3 grams, size 5.75, the center stone is a Legacy Cushion Brilliant Cut diamond weighing 3.18 ct, F in Color...
Category

2010s American Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

I FLAWLESS GIA 3.21 Carat Round Brilliant Cut Diamond Ring
Located in Rome, IT
This exquisite GIA 3.21 Carat Round Brilliant Cut Diamond has a beautiful open shank pave of natural brilliant cut diamonds with a total weight of 1 carats
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Collector's Italian Vintage Cabochon Vivid Blue Untreated Sapphire Diamond Ring
Located in Rome, IT
This exquisite cabochon vivid blue sapphire and diamond ring belonged to an italian duchess from Sicily The story behind this piece is fascinating. The jewel piece was given as a ...
Category

1910s Italian Art Deco Vintage 3 Carat Solitaire Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

3.30 Carat Emerald and Diamond Estate Engagement Ring Gold
Located in Brunswick, ME
gorgeous showcasing estate ring centering an Intense perfect medium green Emerald-cut Zambian genuine emerald 2.90 Carats. The emerald is very clean. The side diamonds are baguette-...
Category

21st Century and Contemporary American Contemporary 3 Carat Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Flawless Type 2A 3.30 Carat Oval Brilliant Cut Diamond Loose Stone
Located in Rome, IT
FLAWLESS TYPE IIA 3.30 Carat Oval Diamond
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

Burma Certified 3.56 Carat Oval Ruby Diamond Platinum Ring
Located in Rome, IT
Burma Certified 3.56 Carat Oval Ruby Diamond Platinum Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Ruby, Platinum

EGL Certified 3.06 Carat Princess Cut Diamond Ring White Gold
Located in BEVERLY HILLS, CA
Classic solitaire diamond engagement / signant ring, EGL Israel certified. 3.06 carat princess cut diamond, EGL certified, E color grade and SI2 clarity grade. 14-karat white gold, 1...
Category

21st Century and Contemporary American Contemporary 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, White Gold, 14k Gold

GIA Certified 3.25 Carat Fancy Light Yellow Old Mine Cut Diamond Made in Italy
Located in Rome, IT
A very rare and exquisite 3.25 carat fancy light yellow diamond certified by GIA. The diamond is very rare for three main reasons is a fancy light yellow stone, is an old mine cut ...
Category

2010s Italian 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Yellow Diamond

3.14 Carat Round Diamond 14 Karat White Gold Solitaire Ring
Located in Great Neck, NY
3.14 ct round brilliant cut natural diamonds. 6 prong solitaire setting, set in 14k white gold. Ring Size 6.5.
Category

2010s American 3 Carat Solitaire Rings

Materials

Diamond, Gold, 14k Gold, White Gold

GIA Certified 3 Carat Emerald Cut Diamond Ring
Located in Rome, IT
A beautiful three stone design emerald cut diamond ring. The main diamond is a very well cut diamond and has an amazing faceting pattern that emerald cut lovers will certainly apprec...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald, 18k Gold

Vintage Victorian Style Apx 3.25 Carat Rose Cut Diamond Ring
Located in BEVERLY HILLS, CA
Vintage Victorian style rose cut diamond ring. Center round rose cut diamond, approximately 3.25ct but faces up like a 4ct diamond. Approximately I/J color and VS clarity. Compliment...
Category

Mid-19th Century Unknown Victorian Antique 3 Carat Solitaire Rings

Materials

Diamond, Silver

I Flawless 3 Carat Cushion Cut Diamond Platinum Solitaire Ring
Located in Rome, IT
An exquisite brilliant cushion diamond with two tapered baguette diamonds and is mounted in solid platinum the total carat amount is 3 carats the main stone weight is 3 carats has h ...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3.24 Carat Round Brilliant Cut Diamond Ring
Located in Rome, IT
An exquisite round brilliant cut diamond ring the main stone weights 3.24 carats is si1 clarity and J color the ring has a beautiful pave and all the stones are very pure j color an...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

White Diamond, Diamond

GIA Certified 3.27 Carat Old European Diamond Solitaire Engagement Ring
Located in Rome, IT
GIA Certified 3.27 carat old european cut certified diamond is beautifully white, eye clean, and vibrant with gorgeous life and fire. Measuring 9.14 mmx 9.64 mm in diameter, the diam...
Category

2010s Italian Art Deco 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

GIA Certified Fancy Yellow Internally Flawless Clarity Diamond Solitaire Ring
Located in Rome, IT
GIA Certified Fancy Yellow Internally Flawless Clarity Diamond Solitaire Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

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

GIA Certified 3 Carat Round Brilliant Cut Diamond Cocktail Ring
Located in Rome, IT
The impeccable finishing, ideal proportions, and magnificent cut create an absolutely magnificent, mesmerizing play of light! Its sparkle is dazzlingly bright and lively with stunnin...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond

GIA Certified 3 Carat VS1 Clarity Old European H Color Diamond Platinum Ring
Located in Rome, IT
A one-of-a-kind engagement ring comprising of an Old European-cut diamond weighing 3 carats. The diamond is certified by GIA stating that it's of H color, VS1 clarity, by Antinori di...
Category

2010s Italian 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

3 Carat Colombian Emerald and 1.25 Carat Diamond Cocktail Ring
Located in Laguna Hills, CA
Colombian Emerald, 3 Carat total weight Diamond Ring The ring features a center Emerald Cut Emerald of Colombian origin measuring 8 x 6 mm in diameter and weighing approximately 1.75...
Category

19th Century Unknown Modern Antique 3 Carat Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Golconda type IIA GIA Certified 3 Carat Pear Cut Diamond Solitaire Ring
Located in Rome, IT
this 3-carat TYPE 2A Golconda type pear shape Diamond GIA certified (see certificate picture for detailed stone's information). The center diamond accompained by 0.80 tapered baguett...
Category

2010s Unknown Modern 3 Carat Solitaire Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Fancy Intense Yellow Old Mine Cut Diamond Made in Italy
Located in Rome, IT
A very rare and exquisite 3 carat fancy intense yellow diamond certified by GIA. The diamond is very rare for three main reasons is a fancy intense yellow stone, is an old mine cut...
Category

2010s Italian 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Yellow Diamond

FLAWLESS GIA Certified 3.41 Carat Round Brilliant Cut Diamond Platinum Ring
Located in Rome, IT
FLAWLESS GIA Certified 3.41 Carat Round Brilliant Cut Diamond Platinum Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Internally Flawless 3 Carat Marquise Brilliant Cut Fancy Intense Blue Diamond
Located in Rome, IT
Fantastic investment grade marquise Cut natural Diamond certified by the GIA. The GIA certificate states that the diamond is fancy intense blue and internally flawless this is a one ...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, Blue Diamond

GIA Certified 3 Carat Round Brilliant Cut Diamond Tapered Baguette Ring
Located in Rome, IT
large 3.00 carat GIA certified triple excellent diamond is beautifully white, 100% eye clean, and displays absolutely phenomenal sparkle! This diamond was hand selected because it is...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

GIA Certified 3 Carat Emerald Cut Diamond Ring
Located in Rome, IT
A Spectacular Emerald Cut Weighing 3 Carat with a double pave of diamonds a very long diamond with excellent proportions and 100% eye clean set in solid platinum with pave diamonds
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Emerald, Diamond, White Diamond

GIA Brilliant Old Mine Cushion 3.45 Carat Diamond Ring
Located in Rome, IT
This one-of-a-kind piece features a 3.45 carat old cut cushion brilliant diamond with K color and VS1 clarity. old mine cushion diamonds are the most popular nowdays eye clean and...
Category

2010s Italian Art Deco 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

GIA Certified 3 Carat Radiant Cut Diamond Ring Flawless E Color Ideal Proportion
Located in Rome, IT
An amazing 3 radiant cut diamond e COLOR flawless Clarity
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond

Internally Flawless GIA Certified 3 Carat Fancy Yellow Diamond 18K Gold Ring
Located in Rome, IT
An exquisite GIA certified 3 carat fancy yellow diamond ring with excellent polish and symmetry and faint fluorescence. According to its GIA report, this diamond is grade internally ...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Yellow Diamond, 18k Gold

Internally Flawless Clarity GIA Certified 3.11 Carat Emerald Cut Diamond Ring
Located in Rome, IT
gorgeous and utterly classic vintage engagement ring combines eye catching impressive sparkle with an eternally stylish design. The 3.11 carat emerald cut center diamond is bright w...
Category

2010s Italian Art Deco 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 3 Carat Red Spinel Diamond Solitaire Platinum Ring
Located in Rome, IT
An exquisite and unique natural spinel has a gorgeous rich red color and sparkles with lively brilliance. The stone is ideal in cut quality as it has crisp faceting and amazing light...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Spinel, Platinum

GIA 3.43 Carat Princess Cut Diamond 18 KT White Gold Solitaire Ring
Located in Rome, IT
An exquisite brilliant cushion diamond with two tapered baguette diamonds and is mounted in solid 18K white gold the total carat amount is 3.43 carats the main stone weight is 3.43 c...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Tiffany & Co. IDEAL CUT 3 Carat Round Brilliant Cut Diamond Platinum Ring
Located in Rome, IT
Tiffany & Co. 3 Carat Round Brilliant Cut Diamond Platinum Ring This Tiffany & Co. Diamond Platinum Designer Solitaire Engagement Ring is dazzling and full of sparkle weighing 5.6...
Category

2010s American Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Exceptional GIA Certified 3 Carat Internally Flawless Emerald Cut Diamond Ring
Located in Rome, IT
EXCEPTIONAL GIA Certified 3 Carat Internally Flawless Emerald Cut Diamond Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 3 Carat Emerald Cut Diamond Ring Triple Excellent Cut
Located in Rome, IT
GIA Certified 3 Carat Emerald Cut Diamond Ring Triple Excellent Cut faint fluorescence
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald

Internally Flawless 3 Carat Marquise Brilliant Cut Fancy Intense Blue Diamond
Located in Rome, IT
Fantastic investment grade marquise Cut natural Diamond certified by the GIA. The GIA certificate states that the diamond is fancy intense blue and internally flawless this is a one ...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, Blue Diamond

3.14 Carat Red Cushion Cut No Heat Burmese Spinel Certified
Located in Brunswick, ME
Certified Cushion-Cut No Heat Burmese Red Spinel. Gemstone: Natural Spinel Carat Weight: 3.14 Carats Measurements: 9.87 x 7.21 x 5.08 mm. Shape: Antique Cushion Cutting Style: ...
Category

21st Century and Contemporary American Contemporary 3 Carat Solitaire Rings

Materials

Spinel, 14k Gold, 18k Gold, White Gold, Yellow Gold, Platinum

Natural 3.2 Carat Emerald Cut Emerald & Diamond Ring 18 Karat White Gold
Located in New York, NY
Approximately Natural 3.2 Carat Emerald Cut Emerald & Diamond Ring 14 Karat white Gold , Size 5 A classic design ring Approximately 3.2 Carat Emerald Cut Emerald Absolutely gor...
Category

2010s 3 Carat Solitaire Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

GIA Certified 3 Carat Fancy Light Pink Heart Shape Diamond Ring
Located in Rome, IT
GIA Certified 3 Carat Fancy Light Pink Heart Shape Diamond Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Pink Diamond

GIA Certified 3 Carat Round Diamond Solitaire Engagement Ring Triple Excellent
Located in Rome, IT
This dazzling and substantial 3 carat round brilliant cut diamond is bright white, completely eye clean, and impeccably finished! Cut with absolutely ideal proportions, it displays t...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

3.2 Carat Chocolate Pink Tourmaline Set in Diamond & White Gold Ring
Located in Sherman Oaks, CA
We matched a 20+/- year old engagement ring setting with a large brownish-pink cushion cut tourmaline and got a spectacular result! The setting has graceful cathedral shoulders an...
Category

Early 2000s American Contemporary 3 Carat Solitaire Rings

Materials

White Diamond, Diamond, Tourmaline, Gold, 14k Gold, White Gold

GIA Certified Solitaire 3 Carat VS Square Emerald Cut Engagement Ring
Located in Rome, IT
GIA Certified 3,01 Carat Square Emerald Cut Diamond Ring E Color VS1 Clarity
Category

2010s 3 Carat Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 3 Carat Radiant Cut Diamond Ring VS2 Clarity
Located in Rome, IT
An amazing 3 radiant cut diamond I COLOR VS2 Clarity
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond

GIA Certified 3 Carat Red Spinel Diamond Solitaire Platinum Ring
Located in Rome, IT
An exquisite and unique natural spinel has a gorgeous rich red color and sparkles with lively brilliance. The stone is ideal in cut quality as it has crisp faceting and amazing light...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Spinel, Platinum

3 Ct Mid Night Blue Sapphire and 0.25 Ct Diamond Cocktail Ring, Platinum, Estate
Located in New York, NY
Approximately 3 Ct Mid Night Blue Sapphire & 0.25 Ct Diamond Cocktail Ring in Platinum, Estate Piece 24 Round Brilliant cut diamonds approximately 0.25 ct platinum 10.5 grams 3 Ct Na...
Category

2010s 3 Carat Solitaire Rings

Materials

Diamond, Blue Sapphire, Platinum

Exceptional GIA Certified 3.20 Carat Heart Shape Diamond Solitaire Ring
Located in Rome, IT
An exquisite GIA certified 3.20 carat diamond with internally flawless clarity the highest grade of pureness and e color practically the best you can get. Diamonds like this are co...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3 Carat Cushion Light Yellow Diamond Ring
Located in Rome, IT
GIA Certified 3 Carat Cushion Light Yellow Diamond Ring
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Yellow Diamond, Diamond, White Diamond

Exceptional Flawless GIA Certified 3.02 Carat Oval Diamond Engagement Ring
Located in Rome, IT
An amazing ring by Antinori Fine Jewels, centering on a 3.02 carat F Color Flawless oval-cut diamond. Flanking the center are baguette diamonds on either, set in an everlasting pla...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Tiffany & Co. 3.74 ct Total Weight Platinum Radiant Brilliant Cut Diamond Ring
Located in Rome, IT
Tiffany & Co. 3.74 ct Total Weight Platinum Radiant Brilliant Cut Diamond 3-Stone Engagement Ring. The ring weighs 6.1 grams, size 4.5, the center stone is a Natural Radiant Brill...
Category

2010s American Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Highly Important Flawless GIA Certified Fancy Intense Blue Diamond
Located in Rome, IT
EXCEPTIONAL GIA Certified Fancy Intense Blue Marquise Diamond Colored diamonds are bought as a long-term investment, meaning they are kept out of the market for lengthy periods. t...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, Blue Diamond, Platinum

3ct GIA Certified Fancy Intense Yellow VVS2 Old Mine Cut Diamond
Located in Rome, IT
Extremely GIA certified natural diamond Fancy Intense Yellow VVS2 Old Mine Cut This diamond offers an impressive 3.04 ct size, exquisite clarity and displays a vibrant brilliance and...
Category

2010s Unknown Modern 3 Carat Solitaire Rings

Materials

Diamond

3.14 Carat Round Diamond 14 Karat White Gold Solitaire Ring
Located in Great Neck, NY
3.14 ct round brilliant cut natural diamonds. 6 prong solitaire setting, set in 14k white gold. Ring Size 6.5.
Category

2010s American 3 Carat Solitaire Rings

Materials

Diamond, 14k Gold, Gold, White Gold

GIA Certified 3 Carat Golconda Type IIA Emerald Cut Diamond
Located in Rome, IT
An exquisite 3 carat Type IIa diamond ring with an impressive lenght. Take a look at the video This diamonds are regularly knocking down auction records. Gems of this type are of...
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald, 18k Gold, Platinum

Collector's GIA Certified 3.20 Carat Fancy Greenish Blue Pear Cut Diamond Ring
Located in Rome, IT
COLLECTOR'S GIA Certified 3.20 Carat Fancy Greenish Blue Pear Cut Diamond Ring VVS2 Clarity
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Blue Diamond

I FLAWLESS GIA Certified 2.50 Carat Three-Stone Emerald Cut Diamond Ring
Located in Rome, IT
GIA Certified 2.50 Carat Three Stone Emerald Cut Diamond Platinum Ring Internally flawless clarity The side diamonds weight approximately 0.75 carat in total
Category

2010s Italian Modern 3 Carat Solitaire Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Single Stone solitaire rings for sale on 1stDibs

1stDibs offers a range of single stone solitaire rings. Each of these unique items has been designed with extraordinary care, often using platinum. While looking for the most stylish antique or vintage Single Stone jewelry to pair with your ensemble, you’ll find that Single Stone diamond solitaire rings, from our inventory of 1, can add a particularly distinctive touch to your look. This collection has 1 pieces as well as a number of other designs by this jeweler.

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