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LB Exclusive Platinum Round and Tapered Baguette Diamonds and Ruby Ring
By LB Exclusive
Located in Southampton, PA
of round and tapered baguette diamonds. The ring weighs 6.6 grams, boasting band thickness of 3 mm
Category

21st Century and Contemporary More Rings

Materials

White Diamond, Ruby, Platinum

3 Carat Black and White Diamond Band
Located in Miami, FL
Stunning Black and White Diamond band crafted in white gold, featuring 65 round brilliant cut black
Category

2010s Unknown Modern Band Rings

Materials

Diamond, Black Diamond, 14k Gold, White Gold

LB Exclusive Platinum Round and Tapered Baguette Diamonds and Opal Oval Ring
By LB Exclusive
Located in Southampton, PA
and tapered baguette diamonds that total 1.15 carats and with an opal that weighs 3.46 carats
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 0.57 ct Round and Tapered Baguette Diamonds and Sapphire
By LB Exclusive
Located in Southampton, PA
sapphire that weighs 1.78 carats and with round and tapered baguette diamonds that amount to 0.57 carats
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

3/8 Carat Round Brilliant Diamond Le Vian Ring, 14 Karat White Gold Cluster Halo
By Le Vian
Located in Greensboro, NC
fire to the display, more white diamonds sparkle on the sides of the ring as they taper into a smoothly
Category

21st Century and Contemporary Unknown Cluster Rings

Materials

Diamond, Brown Diamond, 14k Gold, White Gold

LB Exclusive Platinum 2.41 ct Round and Tapered Baguette Diamonds and Sapphire
By LB Exclusive
Located in Southampton, PA
carats of round and tapered baguette diamonds. The ring weighs 15.8 grams, boasting band thickness of 3
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 1.38 ct Round/Tapered Baguette Diamonds and Emerald Ring
By LB Exclusive
Located in Southampton, PA
emerald that weighs 2.35 carats and with round and tapered baguette diamonds that amount to 1.38 carats
Category

21st Century and Contemporary More Rings

Materials

White Diamond, Emerald, Platinum

Platinum Round, Marquise, and Tapered Baguette Diamonds and Large Opal Oval Ring
Located in Southampton, PA
This ring is crafted from platinum and set with an opal that weighs 8.00 carats and with diamonds
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive 18 Karat Yellow Gold Round and Tapered Diamond Band Ring
By LB Exclusive
Located in Southampton, PA
4 mm and top height of 3 mm, while top dimensions measure 22 by 11 mm. The ring is set with diamonds
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Yellow Gold

LB Exclusive 18 Karat White Gold Round and Tapered Diamond Band Ring
By LB Exclusive
Located in Southampton, PA
diamonds that amount to 0.66 carats. Offered in brand new condition, this item includes a gift box.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

HARBOR D. Sapphire Diamond Cluster Cocktail Ring 7.47 Carat Platinum
By Harbor Diamonds
Located in New York, NY
flanked with a cluster of round brilliants and tapered baguettes weighing 3 carats. Color G-H Clarity VS
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

LB Exclusive Platinum 1.60 ct Round and Tapered Baguette Diamonds and Opal Ring
By LB Exclusive
Located in Southampton, PA
of round and tapered baguette diamonds. The ring weighs 11.2 grams, boasting band thickness of 3 mm
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 0.77 ct Round and Tapered Baguette Diamonds and Pearl Ring
By LB Exclusive
Located in Southampton, PA
pearl and a total of 0.77 carats of round and tapered baguette diamonds. Offered in estate condition
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 0.52 ct Round and Tapered Baguette Diamonds and Pearl Ring
By LB Exclusive
Located in Southampton, PA
mm pearl and a total of 0.52 carats of round and tapered baguette diamonds. Offered in estate
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 0.77 ct Round and Tapered Baguette Diamonds and Pearl Ring
By LB Exclusive
Located in Southampton, PA
pearl and a total of 0.77 carats of round and tapered baguette diamonds. Offered in estate condition
Category

21st Century and Contemporary More Rings

Materials

Diamond, Platinum

LB Exclusive Platinum 1.60 ct Round and Tapered Baguette Diamonds and Opal Ring
By LB Exclusive
Located in Southampton, PA
of round and tapered baguette diamonds. The ring weighs 11.2 grams, boasting band thickness of 3 mm
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Opal, Platinum

Bulgari “Trombino” 3 Carat Diamond Center Ring
By Bulgari
Located in Carmel-by-the-Sea, CA
the center with a 3 carat round diamond that grades as J-K color with Si2 clarity. The major stone is
Category

Vintage 1950s Dome Rings

Materials

Diamond, Platinum

Modern 3 Carat Solitaire Baguette Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
. This gorgeous platinum engagement ring features a modern 3.89 carat round brilliant cut diamond that
Category

Early 2000s Unknown Modern Engagement Rings

Materials

Diamond, Platinum

1.35 Carat Round Diamond Cluster Engagement Wedding Platinum Yellow Gold
Located in New York, NY
dazzles with Gemologic Certified 0.28ct Round Brilliant Center Diamond F-G color, VS clarity (Near
Category

Early 2000s Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Diamond Tapered Band, 14 Karat Yellow Gold Ring Baguette Cut 1.00 Carat
Located in Greensboro, NC
are framed by six round brilliant cut diamond accents. This ring is a size 6 3/4. Please contact us
Category

21st Century and Contemporary Unknown Wedding Rings

Materials

Diamond, 14k Gold, Yellow Gold

Mid-Century French Gia 2.97 Carats Round Brilliant Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One Mid Century French GIA 2.97 Carats Round Brilliant Cut Diamond Platinum Ring. Featuring one GIA
Category

Vintage 1950s French Engagement Rings

Materials

Diamond, Platinum

0.94ctw 3-Stone Round Diamond Engagement Ring 14K Yellow Gold Size 6
Located in McLeansville, NC
Gemstone Information: - (Center) Natural Diamond- Total Carats - 0.34 ct Cut - Round Brilliant
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Yellow 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

1.50 Carat Round Cut Diamond Engagement Ring, 14 Karat Gold White and Blue
Located in Greensboro, NC
fancy green peek-a-boo diamonds. The ring’s shank is slightly tapered and smoothly finished for comfort
Category

20th Century Unknown Engagement Rings

Materials

Diamond, Blue Diamond, 14k Gold, White Gold

Retro GIA 4.15 Carat Round Brilliant Cut Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
One Retro GIA 4.15 Carat Round Brilliant Cut Diamond Platinum Engagement Ring. Featuring one GIA
Category

Vintage 1950s Retro Engagement Rings

Materials

Diamond, Platinum

14K Yellow Gold 2-1/3 Carat Diamond Cluster Band Engagement Ring Wedding Band
Located in New York, NY
features a cluster of seven round brilliant cut diamonds in a tapered multi prong setting as the center
Category

21st Century and Contemporary Indian Contemporary Bridal Rings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

3 Carat Old Mine Cut Diamond Emerald Engagement Ring
Located in Santa Barbara, CA
unique emerald halo. The near 3 carat antique diamond has all the personality we love in an old mine cut
Category

2010s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

Late Art Deco 1.88 Carat Round Transition Cut Diamond Platinum Ring
Located in Addison, TX
Diamond Details: Shape: Round "Transition" Cut Carat Weight: 1.52 carats Color: I/J Clarity: I1 Side
Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Platinum

Jude Frances 3 Carat Total Diamond and 18 Karat White Gold Bangle Bracelet
By Jude Frances
Located in Hicksville, NY
Jude Frances 3.0 carat total Diamond Bracelet - 18 Karat White Gold, Diamonds Features: 3.0 carats
Category

2010s American Contemporary Bangles

Materials

Diamond, 18k Gold, White Gold

Vintage .25 Carat Platinum Retro 3-Stone Diamond Engagement Ring
Located in Addison, TX
the center with squared "illusion" head. Smaller round diamonds flank the center with sparkle from
Category

Mid-20th Century Post-War Bridal Rings

Materials

Diamond, Platinum

Antique 1900s 2.04 Carat Diamond Gold Trilogy Ring
Located in Jesmond, Newcastle Upon Tyne
SI2 Cut Old European round Content 0.98 carat Dimensions 6.02mm x 5.69mm x 4.27mm Diamond one Color G
Category

20th Century Unknown Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

0.75 Carat Vintage 3-Stone Diamond Ring Set in 14 Karat White Gold
Located in Addison, TX
: Diamond Count: 3 Shape: Round Brilliant Cut Carat Weight: 0.20 CT Color: H-I Clarity: SI1-SI2 Accent
Category

Early 20th Century Art Deco Three-Stone Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Art Deco 1 Carat 3-Row Antique Singlecut Diamond Platinum Ring, circa 1930s
Located in Addison, TX
: tapers from 8.5-2mm Finger to Top of Ring: 3mm Diamond Details: Shape: Antique Single Cut Carat Weight
Category

Vintage 1930s Unknown Art Deco Band Rings

Materials

Diamond, Platinum

0.50 Carat Vintage 3-Stone Diamond Ring Set in 14 Karat White Gold
Located in Addison, TX
: Diamond Count: 2 Shape: Round Brilliant Cut Carat Weight: 0.22 CT Dimensions: 3.05 x 3.0 x 1.85mm Color
Category

Early 20th Century Art Deco Three-Stone Rings

Materials

Diamond, Gold, 14k Gold, White Gold

0.67 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
. Diamond Quality Color H Clarity SI 2 Cut Transitional modern brilliant round Content 0.67 carat Dimensions
Category

Vintage 1960s Solitaire Rings

Materials

Diamond, Platinum

Brown and White Diamond Ring, 14 Karat Gold Cluster Round Brilliant 1.90 Carat
Located in Greensboro, NC
White Diamonds' Carats: 1.10ctw Brown Diamonds' Carats: 0.80ctw Total Carats: 1.90ctw Face Height
Category

21st Century and Contemporary Unknown Cluster Rings

Materials

Diamond, Brown Diamond, 14k Gold, White Gold

Celtic Knot Diamond Ring, 14 Karat Yellow Gold Men s Round Cut .39 Carat
Located in Greensboro, NC
: Natural Diamonds - Clarity: VS1 - VS2 Color: G - H Cut: Round Total Carats: 0.39ctw Face Height (north
Category

21st Century and Contemporary Unknown Fashion Rings

Materials

Diamond, 14k Gold, Yellow Gold

Sleek 3 Carat Bicolor Tourmaline and Diamond 18k Gold Engagement Ring
Located in Santa Barbara, CA
-pink, green Clarity: Transparent Accent Diamonds:  10 Round Brilliants 0.20 carats total Color: G-H
Category

1990s Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Gold, 18k Gold

Vintage 1.05 Carat Old European Round Diamond Sapphire Engagement Ring
Located in Santa Barbara, CA
carat old European cut round diamond with those alluring larger facets that flicker under candlelight
Category

20th Century American Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

14W 3 Row Diamond Band Ring
Located in McLeansville, NC
with single cut diamonds weighing approximately .44 total carats and with a tapered band. Stones
Category

Vintage 1980s Band Rings

Materials

Diamond, Gold, 14k Gold, White Gold

3 Carat Peridot Gemstone Engagement Ring
Located in Santa Barbara, CA
Light Olive Green Clarity: Transparent Round Diamonds: 38 total 0.35 carats total Ring Size: 4.75
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, Peridot, 14k Gold, White Gold

Very Large 7 Carat Baguette and Round Diamond 18 Karat White Gold Party Earrings
Located in Tustin, CA
incredible earrings feature raised centers of 14 pave and “u” set round brilliant diamonds, surrounded by a
Category

21st Century and Contemporary American Contemporary Dangle Earrings

Materials

White Diamond, 18k Gold, White Gold

Herbert Rosenthal 3 carat Ring Gold GIA Sapphire Diamond circa 1960 Ballerina
By Herbert Rosenthal
Located in Los Angeles, CA
diamonds weight approximately 1.21cts and the 1.79 carat Round Brilliant sapphire is GIA certified. The
Category

Vintage 1960s Unknown Contemporary Cocktail Rings

Materials

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

GIA Certified 3/4 Carat Diamond Art Deco Antique Filigree Engagement Ring
Located in Santa Barbara, CA
: Platinum Diamonds:  Carat Weight: 0.69 Cut: Old Mine Color: J Clarity: SI1 Accent Diamonds: 4 Round
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

4.25 Carat Diamond Band
Located in Miami, FL
Gorgeous diamond band crafted in 18 karat white gold, adorned with 53 round brilliant cut diamonds
Category

2010s American Modern Band Rings

Materials

Diamond, 18k Gold

Vintage 2 Carat Oval Black Opal Diamond 3 Stone Platinum Ring GIA Certified
Located in Miami, FL
brilliant white natural diamonds, 3 on each side. They total 0.29 carats and compliment the center stone
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

10 Carat Diamond Tennis Necklace
Located in Addison, TX
individually set 3- prong Diamonds. The total diamond weight is 10 carats. They taper in size top to bottom
Category

2010s Romantic Choker Necklaces

Materials

Diamond, 14k Gold

2.10 Carat Aquamarine and 0.38 Carat Diamond White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
eighteen individually claw / prong set modern brilliant round cut diamonds. The pierced decorated
Category

Vintage 1980s Unknown Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

1.8 Carat Diamond Band
Located in Miami, FL
carats of round brilliant cut diamonds G color VS clarity. The diamond encrusted band wraps around the
Category

21st Century and Contemporary Unknown Modern Band Rings

Materials

Diamond, 18k Gold, White Gold

3 row diamond cluster ring in yellow gold
Located in Coral Gables, FL
14 karat yellow gold 3 row ring featuring 31 round brilliant cut diamonds of SI2 clarity and H
Category

21st Century and Contemporary Band Rings

Materials

Diamond, 14k Gold, Yellow Gold

Sapphire and Diamond Cuff Bangle 17.9 Carat Diamonds 21.9 Carat Sapphires
Located in Mayfair, London, London
encrusted with 40 marquise cut diamonds forming 3 diamonds shaped illusion. Complementing this are 73
Category

21st Century and Contemporary Cuff Bracelets

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold

1910s Antique 2.44 Carat Diamond Platinum Three-Stone Ring
Located in Jesmond, Newcastle Upon Tyne
carat Dimensions 5.72mm x 5.65mm x 3.33mm Diamond Two Color I Clarity VS2 Cut Old European round
Category

Vintage 1910s Unknown Three-Stone Rings

Materials

Diamond, Platinum

8.5 Carat Riviere Diamond Necklace
Located in Miami, FL
cut diamonds weighing approximately 8.50 carats total, G color, SI2-3 clarity. The diamonds are set in
Category

2010s Unknown Modern More Necklaces

Materials

Diamond, 14k Gold, White Gold

Vintage 0.89ctw Natural Fancy Brown Round Diamond Engagement Bridal Platinum Set
Located in New York, NY
A Stunning Mid-Century Estate Vintage Round Shaped Diamond Ring from our Estate Collection - is
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, Brown Diamond, Platinum

Vintage 3 Carat Green Tourmaline and Diamond 18k Gold Cocktail Engagement Ring
Located in Santa Barbara, CA
standards Accent Diamonds: 18 Round Brilliant & 4 Tapered Baguettes 0.50 carats total Color: F-H Clarity
Category

Vintage 1980s Art Deco Engagement Rings

Materials

18k Gold

Tiffany Co. Platinum Round Diamond Engagement Ring w/ Baguettes 1.26Ct IVS1
By Tiffany Co.
Located in New York, NY
center weighing 1.26 carats I color VS1 clarity flanked by 2 tapered baguette diamond sides weighing 0.59
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Sparkling 1.39ct Three-stoned Round Brilliant Diamond Ring
Located in רמת גן, IL
This captivating ring showcases a central round brilliant diamond weighing 0.7 carats, captivating
Category

2010s Israeli Three-Stone Rings

Materials

Diamond, White Gold, 18k Gold

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3 Carat Round Diamond Tapered For Sale on 1stDibs

Find the exact 3 carat round diamond tapered you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and 14k Gold. Find an antique version now, or shop for 10 vintage or 21 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 3 carat round diamond tapered 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. Creating a 3 carat round diamond tapered has been a part of the legacy of many jewelers, but those produced by Antinori Fine Jewels, LB Exclusive and Anna Sheffield are consistently popular. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes baguette cut and cushion cut alternatives. Most of our 3 carat round diamond tapered for sale are for women, but there are 7 pieces available to browse for men.

How Much is a 3 Carat Round Diamond Tapered?

The price for a 3 carat round diamond tapered starts at $840 and tops out at $295,000 with these rings, on average, selling for $5,850.

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.