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3 Carat Round Cut Natural Diamond Solitaire Mens Ring in 14K Gold Two Tone
By Gad Co.
Located in Miami, FL
design. Boasting a 3-carat diamond, showcasing a warm M-N color, and held securely with a 4-prong setting
Category

2010s North American Modern Solitaire Rings

Materials

Diamond, Yellow Gold, 14k Gold

Bvlgari Diamond 1/3 0.33 Carat Round Cut Platinum Solitaire Bulgari Ring D VVS1
By Bulgari
Located in Birmingham, GB
A classic Bvlgari Diamond Solitaire Ring in Platinum, set with a 0.33ct D/VVS1 Round Brilliant Cut
Category

2010s Solitaire Rings

Materials

Diamond, White Diamond, Platinum

14K Gold 3 Carat Indicolite Blue Tourmaline Ring
Located in Cape May, NJ
14K Yellow Gold 3 Carat Indicolite Blue Tourmaline Ring. The ring is in great condition and ready
Category

1990s American Solitaire Rings

Materials

Tourmaline, 14k Gold

Cartier Mounting with 3 Carat Cushion Cut Diamond Ring G VS2, GIA
Located in New York, NY
original to the mounting but an upgrade. This 3.02 carat G VS2 Cushion cut diamond was cut in our New York
Category

1990s American Contemporary Solitaire Rings

Materials

Diamond, Platinum

3, 80 Carat Aquamarine 18 Karat White Gold Ring
Located in Poitiers, FR
aquamarine: approximately 3.80 carats. Height: 1.2 cm, width: 9.2 mm, thickness: 7.7 mm, width of the ring at
Category

Vintage 1980s French Modern Solitaire Rings

Materials

Aquamarine, Gold, 18k Gold, White Gold

GIA Certified Vintage 3 Carat Cushion Cut Diamond Engagement Ring
Located in Santa Barbara, CA
This stunning 3.01 carat vintage diamond engagement ring is the consummate choice alongside a
Category

1990s Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

3 Carat Natural Cushion Cabochon Emerald Diamond Ring 14 Karat White Gold
Located in New York, NY
A classic, Cocktail ring i am selling this ring at a very reasonable price. Approximately 3 Carat
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

GIA 3 Carat Asscher Cut White Diamond Ring in 18K 2 Tone Gold
Located in Los Angeles, CA
Stunning 3.01 ct. G SI1 asscher cut white diamond. Handmade in 18k yellow and white gold. Ring size 6.5. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Gold

GIA 3 Carat Fancy Yellow Radiant Diamond Ring in Platinum and 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 3.07 ct. fancy yellow radiant diamond VS1 with 0.39 ct. good quality white diamond rounds. Handmade in 18k yellow gold and platinum. Ring size 6.5. GIA certificate is inc...
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold, Platinum

GIA 3.70 Carat Old Mine Cut Diamond 18 Karat Gold Engagement Ring
Located in Beverly Hills, CA
on the hunt for these Old Mines, especially when they are over 3 carats. This solitaire ring is
Category

2010s Solitaire Rings

Materials

Diamond, Yellow Gold, 18k Gold

Antique 3.31 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
representation of the actual color and showcases each stone in this antique 3 carat solitaire diamond ring
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Platinum

Beauvince Cushion Cut 3 Stone Engagement Ring (3.02 ct HVS1 GIA Diamond)
By Beauvince Jewelry
Located in New York, NY
This beautiful Cushion Cut Diamond Engagement Ring features a stunning 3 carat Solitaire with
Category

2010s Contemporary Engagement Rings

Materials

Diamond, 18k Gold

Certified 3 Carat Oval Diamond Solitaire Engagement Ring
Located in Santa Barbara, CA
The Beverly Hills 3 carat oval diamond solitaire engagement ring is a most impressive find. The
Category

Early 2000s Modern Engagement Rings

Materials

Diamond, Platinum

14K Yellow Gold 3/8 Carat Square Diamond Classic Solitaire Stud Earrings
Located in New York, NY
solitaire in a timeless four-prong setting. Captivating with the brilliance of diamonds and a gleaming
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

Yellow Gold Plated Sterling Silver 3/4 Carat Diamond Solitaire Pendant Necklace
Located in New York, NY
.925 Sterling Silver setting. This round brilliant cut, natural diamond weighs 3/4 Carat Total Weight
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver, 14k Gold, Gold Plate, Yellow Gold

14K White Gold 1/3 Carat Treated Pink Diamond Solitaire Pendant Necklace
Located in New York, NY
. This solitaire diamond necklace features a single, brilliant-cut .30 carat treated pink diamond in a
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, Pink Diamond, 14k Gold, White Gold

Vivid Diamonds GIA Certified 3 Carat Diamond Solitaire Stud Earrings
By Vivid Diamonds
Located in Miami, FL
Stunning Vivid Diamonds solitaire stud earrings crafted by hand in platinum, showcasing 2
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 3 Carat Diamond Solitaire Stud Earrings
By Vivid Diamonds
Located in Miami, FL
Stunning Vivid Diamonds solitaire stud earrings crafted by hand in platinum, showcasing 2
Category

21st Century and Contemporary Modern Stud Earrings

Materials

Diamond, Platinum

AGS Certified 14K Yellow Gold 3/8 Carat Solitaire Diamond Stud Earrings
Located in New York, NY
Gold each earring showcases a sparkling Princess-Cut Solitaire Diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

14K White Gold 3/4 Carat Princess Cut Diamond Solitaire Stud Earrings
Located in New York, NY
earrings. Crafted in 14K white gold, each earring features a mesmerizing 0.375 ct. diamond solitaire in a
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

2.68 Carat Round Sapphire Ring 14 Karat Yellow Gold Solitaire AD1540-3
Located in Osprey, FL
♥ Solid 14K gold ring set with a beautiful round brilliant cut sapphire in the center ♥ Set in a 6-prong tulip style setting ♥ The sapphire is a green blue sapphire, meaning it is...
Category

2010s American Engagement Rings

Materials

Sapphire, 14k Gold, Yellow Gold

.925 Sterling Silver 3/8 Carat Brilliant Cut Diamond Solitaire Stud Earrings
Located in New York, NY
This modern pair of diamond studs features sparkling, natural diamonds in a miracle setting. The sleek design is crafted in a cool sterling silver making them the perfect choice to a...
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

10K White Gold 1/3 Carat Diamond Modern Bezel-Set Solitaire Pendant Necklace
Located in New York, NY
, masterfully wrought from 10K white gold, and adorned with a 1/3 carat round brilliant-cut diamond. The
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, 10k Gold, White Gold

10K White Gold 1/3 Carat Brilliant-Cut Diamond Modern Solitaire Pendant Necklace
Located in New York, NY
, masterfully wrought from 10K white gold, and adorned with a 1/3 carat round brilliant-cut diamond. The
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

White Diamond, Diamond, 10k Gold, White Gold

10K White Gold 3/10 Carat Round-Cut Diamond Modern Solitaire Pendant Necklace
Located in New York, NY
Some things shouldn't be reinvented, which is why we created the solitaire diamond necklace. This
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, White Gold, 10k Gold

10K White Gold 3/10 Carat Round-Cut Diamond Modern Solitaire Pendant Necklace
Located in New York, NY
Some things shouldn't be reinvented, which is why we created the solitaire diamond necklace. This
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 10k Gold, White Gold

AGS Certified 14K White Gold 3/4 Carat Heart Shaped Solitaire Diamond Pendant
Located in New York, NY
Add a little sparkle to your day with this delicate heart diamond solitaire pendant. A dazzling 3
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

Certified 14K Yellow Gold 3/8 Carat Princess-Cut Solitaire Diamond Stud Earring
Located in New York, NY
Gold each earring showcases a sparkling Princess-Cut Solitaire Diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

AGS Certified 14k White Gold 3/8 Carat Square Diamond Solitaire Stud Earrings
Located in New York, NY
Elegant and timeless, these gorgeous AGS certified 14 karat white gold solitaire stud earrings
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

AGS Certified 14K Yellow Gold 3/8 Carat Princess Solitaire Diamond Stud Earrings
Located in New York, NY
gold, each earring showcases a sparkling square shaped, brilliant cut certified diamond solitaire
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

AGS Certified 14K Yellow Gold 3/8 Carat Solitaire Diamond Push Back Stud Earring
Located in New York, NY
Gold each earring showcases a sparkling Princess-Cut Solitaire Diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Yellow Gold, 14k Gold

AGS Certified 14k White Gold 3/8 Carat Solitaire Diamond Push Back Stud Earrings
Located in New York, NY
gold each earring showcases a sparkling princess-cut solitaire diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Certified 14k Yellow Gold 3/8 Carat Princess-Cut Solitaire Diamond Stud Earring
Located in New York, NY
Gold each earring showcases a sparkling Princess-Cut Solitaire Diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, Yellow Gold

GIA Natural Ruby Engagement Ring 4 Carat Diamond Baguette Oval Solitaire 3 Stone
Located in Santa Barbara, CA
This regal ruby engagement ring boasts a GIA certified 3.95 carat natural ruby of a deeply
Category

Vintage 1960s Modern Engagement Rings

Materials

Diamond, Ruby, Platinum

3-Stone Ring 14 Karat White Gold 1.03 Carat GIA Certified Diamond Solitaire
Located in New York, NY
This 3 stone diamond ring features a round center stone. The diamonds are available in all sizes
Category

2010s Modern Engagement Rings

.925 Sterling Silver 3/8 Cttw Black Diamond Solitaire Stud Earrings
Located in New York, NY
ensemble. Total Carat Weight is 3/8 Cttw. • Metal: .925 White Sterling Silver with Rhodium Plating
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, Black Diamond, Rhodium, Sterling Silver

14K Yellow Gold 1 3/8 Cttw Champagne Diamond Solitaire Pendant Necklace
Located in New York, NY
showcases the 1 3/8 cttw of the solitaire natural champagne diamond. The warm and inviting hue of the
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

White Diamond, 14k Gold, Yellow Gold

AGS Certified 14k Yellow Gold 3/8 Cttw Princess Solitaire Diamond Stud Earrings
Located in New York, NY
Gold each earring showcases a sparkling Princess-Cut Solitaire Diamond in a 4-Prong Setting. Dazzling
Category

21st Century and Contemporary Indian Stud Earrings

Materials

Diamond, White Diamond, Yellow Gold, 14k Gold

14K White Gold 3/8 Ctw Princess-Cut Square Diamond Solitaire Stud Earrings
Located in New York, NY
a stunning 4-prong setting. This everlasting piece has a total carat weight of 3/8 cttw, and will be
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

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

Alexander GIA Certified E Color 3.06ct Oval Diamond Ring 18 Karat White Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning modern GIA certified 3 carat oval diamond solitaire ring, 18k white gold with diamonds
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural 3 Carat Emerald Cut Emerald 1 Carat Diamond Ring Platinum
Located in New York, NY
Approximately 3 Carat Emerald Cut Emerald and 1 Carat Diamond Ring Platinum Size 5 A classic
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Platinum

Sterling Silver Blue Topaz Solitaire Ring 925 Oval 1.20ct Floral East-West 7 3/4
Located in Greensboro, NC
Size: 7 3/4 Metal Content: 925 Sterling Silver Stone Information Natural Blue Topaz Treatment
Category

21st Century and Contemporary Solitaire Rings

Materials

Topaz, Blue Topaz, Sterling Silver

GIA Certified 3 Carat Oval Diamond Ring VS2 Clarity
By Antinori Fine Jewels
Located in Chicago, IL
This eye-catching 2.50 carat GIA certified oval cut diamond ring that has excellent e color, a
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3 Carat Round Brilliant Cut Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
dazzling and substantial 3.00 carat round brilliant cut diamond is bright white, completely eye
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, Platinum

3 Carat Sapphire and Diamond Teardrop Ring 14 Karat
Located in Laguna Hills, CA
estimated weight of 2.50 carat. The blue is a strong violet color. The stone is a VS clarity. Surrounding
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

GIA Certified 3 Carat Fancy Light Yellow Diamond Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 3 carat fancy light yellow diamond ring. The setting will be made in solid platinum
Category

2010s Unknown Modern Solitaire Rings

Materials

Yellow Diamond, Platinum

18 Karat Yellow Gold 3-Stone Emerald Diamond Ring 1.70 Carat
Located in Laguna Hills, CA
1.50 Carat Princess Emerald and Diamond Ring, 18 Karat Yellow Gold Gorgeous Emerald of Colombian
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Emerald, Diamond, Yellow Gold, 18k Gold

3 Carat Square Treated Ruby and Diamond 14 Karat White Gold Ring
Located in New York, NY
3 Carat Square Treated Ruby And Diamond 14 Karat White Gold Ring Size 6.5 prong set 14 K White
Category

2010s Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

3 Carat Natural Oval Emerald and Diamond Ring 14 Karat Yellow Gold
Located in New York, NY
find. Emerald measurements 10X8 mm which is approximately 3 Ct Intense Green color 14 karat Gold 4.6
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

3 Carat Natural Emerald Cut Emerald Ring in Platinum
Located in New York, NY
Approximately 3 Carat Natural Emerald Cut Emerald Ring in Platinum Size 3.2 I am selling this
Category

2010s Solitaire Rings

Materials

Emerald, Platinum

Two Natural Pear Cut Emerald Total 3 Carat Ring 14 Karat Yellow Gold
Located in New York, NY
Approximately 3 Ct Its very hard to capture the true color and luster of the stone, I have tried to add
Category

2010s Solitaire Rings

Materials

Emerald, 14k Gold, Yellow Gold

3 Carat Natural Oval Cut Zambian Emerald Ring in Platinum
Located in New York, NY
Approximately 3 Carat Natural Oval Cut Emerald Ring in Platinum Size 6 I am selling this ring at
Category

2010s Solitaire Rings

Materials

Emerald, Platinum

Blue 3 Carat Sapphire Ring with Side Diamonds 18Karat Gold
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Blue Sapphire = 3.02 Carat Diamonds = 0.47 Carats ( Color
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

3-Stone Emerald and Baguette Diamond Ring, .60 Carat 14 Karat
Located in Laguna Hills, CA
Emerald is centered in this 3-stone ring set in white gold, flanked by a , Baguette diamond on
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

1950s 3 Carat Oval Aquamarine, Diamond and Sapphire 14 Karat Gold Ring
Located in Hicksville, NY
This stunning 1950s Art Nouveau-inspired 3 Carat Aquamarine Ring features a center stone flanked by
Category

Mid-20th Century Unknown Retro Solitaire Rings

Materials

Aquamarine, Diamond, Blue Sapphire, 14k Gold, White Gold

Cartier Three 3-Stone Platinum Round Brilliant Cut Diamond Engagement Ring
By Cartier
Located in Chicago, IL
Cartier Three 3-Stone Platinum Round Brilliant Cut Diamond Engagement Ring
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, Yellow Diamond, 18k Gold

GRS Certified Unheated Ruby 3 Carat Diamond Solitaire ring
By Antinori Fine Jewels
Located in Chicago, IL
Behold the mesmerizing allure of this unblemished treasure—a breathtaking 3-carat Oval Ruby from
Category

2010s Unknown Contemporary Cocktail Rings

Materials

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

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3 Carat Solitaire For Sale on 1stDibs

Find the exact 3 carat solitaire you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and 18k Gold. Find an antique version now, or shop for 2323 vintage or 3366 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 3 carat solitaire may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Finding an appealing 3 carat solitaire — no matter the origin — is easy, but Tiffany Co., Antinori Fine Jewels and Yianni Creations each produced a popular version that is worth a look. A 3 carat solitaire can be a stylish choice for most occasions, but Diamond rings, from our inventory of 4110, can add a particularly distinctive touch to your look, day or night. A round cut version of this piece has appeal, but there are also oval cut and emerald cut versions for sale. If you’re browsing our inventory for a 3 carat solitaire, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 3 Carat Solitaire?

On average, a 3 carat solitaire at 1stDibs sells for $5,090, while they’re typically $96 on the low end and $4,900,000 for the highest priced versions of this item.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And 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

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Questions About 3 Carat Solitaire
  • 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.