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Natural Flawless Emerald and Round Cut Brilliant Diamond Ring
Located in Boca Raton, FL
This luxurious ring features a 3.03-carat natural round brilliant diamond as its centerpiece
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Flawless GIA Certified 4 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
Color Internally Flawless clarity round brilliant cut triple excellent diamond is set in a handcrafted
Category

2010s Italian Modern Engagement Rings

Materials

White Diamond, Diamond, Platinum

EXCEPTIONAL GIA Certified 7 Carat Round Cut Diamond Platinum Ring FLAWLESS
Located in Chicago, IL
GIA Certified 7 Carat Heart Cut Diamond Platinum Ring Elevate your elegance with this breathtaking
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 5 Ct. Round Cut Diamond Engagement Platinum Ring FLAWLESS
Located in Chicago, IL
breathtaking 5 ct Round Brilliant Cut Diamond Platinum Solitaire Engagement Ring that embodies
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 10.66 Carat Round Cut Diamond D Color Flawless Clarity Ring
By Antinori Fine Jewels
Located in Chicago, IL
This extraordinary engagement ring features a dazzling 10.66-carat round-cut diamond, GIA certified
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

1.01 Carat GIA Certified D Flawless Round Brilliant Cut Diamond Engagement Ring
Located in New York, NY
. Not requiring any further embellishment, this GIA certified round brilliant cut diamond is simply set
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 8.07 Carat Round Cut Diamond D Color Flawless Clarity Ring
By Antinori Fine Jewels
Located in Chicago, IL
This magnificent engagement ring showcases an exceptional 8.07 carat round brilliant cut diamond
Category

2010s Unknown Contemporary Solitaire Rings

Materials

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

GIA Certified 5.25 Carat Round Cut Diamond D Color Flawless Clarity Ring
By Antinori Fine Jewels
Located in Chicago, IL
This extraordinary engagement ring features a breathtaking 5.25 carat round brilliant cut diamond
Category

2010s Unknown Contemporary Solitaire Rings

Materials

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

GIA Certified Natural Flawless Round Diamond Eternity Ring
Located in Boca Raton, FL
This stunning eternity ring features a total of 5.6 carats of natural round brilliant diamonds set
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

GIA Certified Natural Flawless Round Diamond Eternity Ring
Located in Boca Raton, FL
This stunning 18k white gold eternity ring features a total of 7.33 carats of natural round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 10 Carat Round Cut Diamond Ring D Color Flawless Type IIA
By Antinori Fine Jewels
Located in Chicago, IL
This spectacular engagement ring features a dazzling 10 carat round brilliant cut diamond
Category

2010s Italian Contemporary Engagement Rings

Materials

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

GIA Certified 3.01 Carat Round Cut Diamond D Color Flawless Clarity Ring
Located in Chicago, IL
This exquisite GIA certified ring features a stunning 3.01 carat round cut diamond, brilliantly set
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

White Diamond, Diamond, Platinum

GIA Certified 1.54 Ct Round Brilliant Cut Diamond Ring D Color Flawless Clarity
By Antinori Fine Jewels
Located in Chicago, IL
This stunning GIA Certified 1.54 Carat Round Brilliant Cut Diamond Solitaire Ring is crafted in
Category

2010s Unknown Contemporary Solitaire Rings

Materials

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

GIA Certified 1.32 Brilliant Cut Diamond Platinum Ring FLAWLESS CLARITY
By Antinori Fine Jewels
Located in Chicago, IL
Exquisite 1.32 ct Round Brilliant Cut Diamond Platinum Solitaire Engagement Ring This stunning
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 1.80 Carat Round Diamond Ring D Internally FLAWLESS
Located in Chicago, IL
An exquisite 1.80-carat D color internally flawless round diamond, showcasing a stunning f color
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, 18k Gold

IGI Certified Natural Round D Flawless Diamond 950 Platinum Solitaire Ring
Located in Birmingham, GB
IGI Certified Natural Round D Flawless 0.30ct Diamond 950 Platinum Solitaire Ring. A beautifully
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 6.51 Carat Round Cut Diamond F Color Flawless Clarity
By Antinori Fine Jewels
Located in Chicago, IL
This stunning solitaire ring showcases a breathtaking 6.51 carat round cut diamond, GIA certified
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

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

GIA Certified 3.3 Carat Fancy Intense Yellow Flawless Round Diamond Ring
Located in Miami, FL
GIA certified 3.30 carat round cut fancy intense yellow diamond with internally flawless clarity. A
Category

21st Century and Contemporary Art Nouveau Engagement Rings

Materials

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

GIA Certified 5.21 Carat Round Shape Diamond Platinum Ring FLAWLESS Type IIA
Located in Chicago, IL
Round brilliant-cut diamond of 5.21 carats, round diamonds, platinum GIA, certified 5.21 carats
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Platinum 1.65ctw E Flawless GIA Round Diamond Low Profile Halo Engagement Ring
Located in Montclair, NJ
features a stunning super high quality GIA certified, round brilliant cut diamond claw prong set at the
Category

2010s American Solitaire Rings

Materials

Diamond, Platinum

GIA Certified 4 Carat Round Diamond Solitaire Platinum Ring FLAWLESS D COLOR
Located in Chicago, IL
This exquisite solitaire ring features a GIA-certified 4-carat Round Brilliant Cut Diamond, set in
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

EXCEPTIONAL GIA Certified 2 Carat Round Brilliant Cut Diamond F COLOR FLAWLESS
By Antinori Fine Jewels
Located in Chicago, IL
color diamond, meticulously fashioned into a mesmerizing round brilliant cut and ensconced in platinum
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, Platinum

25.88 Carat Round Brilliant Diamond Ring Type IIA D Color, Flawless Clarity
Located in Mumbai, IN
This 25.88-carat round brilliant diamond ring is a remarkable display of timeless elegance and
Category

2010s Indian Romantic Bridal Rings

Materials

Diamond, 18k Gold, White Gold

J. Birnbach GIA Certified 6.01ct Radiant Cut Internally Flawless Diamond Ring
By J. Birnbach
Located in New York, NY
stunning ring is a rare GIA certified internally flawless 6.01 carat radiant cut diamond, cut to perfection
Category

21st Century and Contemporary North American Contemporary Engagement Rings

Materials

Diamond, Platinum

Beauvince GIA 2.00 Carat Round H Internally Flawless Engagement Ring
By Beauvince Jewelry
Located in New York, NY
This stunning 2.00 ct H IF GIA certified Round Brilliant Cut Diamond Ring is all the bang for the
Category

2010s Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Kat Florence D Color Flawless Round Diamond Starburst Ring, 18 Karat White Gold
Located in Scottsdale, AZ
: Metal: 18 Karat White Gold Gemstones: Diamonds Diamond Cut: Round Brilliant Diamond Total Carat Weight
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

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

Natural Flawless Brilliant Diamond Halo Ring
Located in Boca Raton, FL
This exquisite ring features a 2-carat natural oval cut brilliant diamond as its centerpiece
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Round Brilliant Cut Diamond Band Ring, Platinum
Located in New York, NY
This exquisite platinum shared prong ring showcases a seamless row of round brilliant-cut diamonds
Category

21st Century and Contemporary Unknown Art Deco Band Rings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 7.23 Carat Emerald Cut Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
encrusted with round brilliant cut diamonds weighing approximately 1 carat total, E color, VVS clarity. This
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.18 Carat Radiant Cut Engagement Ring, Flawless
By Diana M. Jewels
Located in New York, NY
Magnificent GIA certified diamond engagement ring with Ideal proportion Radiant cut diamond in the
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage Flawless Aquamarine Master cut Diamond Halo Ring 14K White Gold Estate
By Estate Jewelry
Located in Brambleton, US
Vintage Flawless Aquamarine Master cut Diamond Halo Ring 14K White Gold Estate What a great
Category

20th Century Cocktail Rings

Materials

Aquamarine, Diamond, White Gold, 14k Gold

GIA Certified 10 Carat Round Brilliant Cut Diamond Ring IDEAL CUT
By Antinori Fine Jewels
Located in Chicago, IL
This one-of-a-kind piece features a 10 carat round brilliant diamond with vs1 Flawless clarity and
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

GIA Ct. 5.12 Round Brilliant Cut Diamond Engagement Ring
By Tiffany & Co.
Located in Chicago, IL
An Engagement Ring featuring a 5.12 ct total weight with a round brilliant cut diamond set in a
Category

2010s American Band Rings

Materials

Diamond, Platinum

Exquisite GIA Certified 4.03 Carat Round Cut Diamond Triple Excellent Cut Ring
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite ring showcases a 4.03 carat round brilliant cut diamond as it's centerpiece
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 5 Carat Round Cut Diamond Solitaire Ring
By Antinori Fine Jewels
Located in Chicago, IL
Indulge in the timeless allure of this GIA Certified 5 Carat Round Cut Diamond Solitaire Ring, a
Category

2010s Unknown Contemporary Engagement Rings

Materials

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

GIA Certified 4.51 Carat Round Cut Diamond Solitaire Ring
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite ring features a GIA certified 4.51 carat brilliant cut diamond, elegantly set in 18K
Category

2010s Unknown Contemporary Engagement Rings

Materials

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

GIA Certified Natural Flawless Diamond Double Eternity Ring
Located in Boca Raton, FL
Flawless clarity. The diamonds are rated Excellent for cut, polish, and symmetry, ensuring exceptional
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Round Brilliant Cut Diamond Band Ring, 14k Rose Gold
Located in New York, NY
craftsmanship. Designed with round brilliant-cut diamonds, each stone is meticulously secured in prong settings
Category

21st Century and Contemporary Unknown Art Deco Band Rings

Materials

Diamond, Gold, Rose Gold

GIA Certified 6.13 Carat Round Cut Diamond Ring TYPE IIA
By Antinori Fine Jewels
Located in Chicago, IL
This exceptional engagement ring features a breathtaking 6.13 carat round brilliant cut diamond
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

18 Karat Yellow Gold Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
: Internally Flawless GIA: 1325072248 Diamond: 36 round brilliant cut = 0.36cttw Color: G Clarity: SI2 Ring
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

GIA Certified 3.01 Carat Round Cut Diamond Platinum Ring with Pear cut Diamond
By Antinori Fine Jewels
Located in Chicago, IL
This magnificent ring features a 3.01 carat round cut diamond, GIA Certified for its exceptional
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

EXCEPTIONAL GIA Certified 4 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite engagement ring features a breathtaking 4 asscher emerald cut diamond, certified by
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 5 Carat Platinum Round Brilliant Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 5 Carat Round Brilliant Cut Diamond Solitaire Engagement Ring. The main diamond is a
Category

2010s Italian Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified Internally Flawless Clarity D Color Cushion Cut Pave Ring
By Antinori Fine Jewels
Located in Chicago, IL
-cut diamond boasting exceptional D color and FLAWLESS clarity grades. Certified by the renowned
Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, White Gold, 18k Gold, Gold

GIA Certified 5 Carat Round Cut Diamond Engagement Platinum Ring
Located in Chicago, IL
5.00 carats. Graded as F in color and internally flawless in clarity, this diamond showcases
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Diamond Ring with Three IF(internally flawless) Diamonds, Color:F
Located in Berlin, BE
with its breathtaking brilliance and elegance. It showcases a trio of exquisite round brilliant-cut
Category

21st Century and Contemporary German Aesthetic Movement Three-Stone Rings

Materials

Diamond, White Gold, 18k Gold, Gold

GIA Certified 4.71 Carat Round Brilliant Cut Diamond Ring
Located in Chicago, IL
center stone is a natural 4.71 ct Round Brilliant Cut diamond, graded H in color and VVS1 in clarity
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Mid Century GIA 9.01 Carat Round Brilliant Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One Mid Century GIA 9.01 Carat Round Brilliant Cut Diamond Platinum Ring. Featuring one GIA round
Category

Vintage 1950s Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage Platinum GIA 5.56ctw Old Cut Round & Baguette Diamond Engagement Ring
Located in Montclair, NJ
and old round cuts that total approximately 1.25 carats in weight. These accenting diamonds
Category

Vintage 1970s Cocktail Rings

Materials

Diamond, Platinum

GIA Certified 4.01 Carat Round Cut Diamond Engagement Solitaire Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
This stunning solitaire engagement ring features a remarkable 4.01 carat round cut diamond, set in
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3.15 Carat Round Cut Diamond Engagement Solitaire Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
This stunning solitaire engagement ring features a remarkable 3.15 carat round cut diamond, set in
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 7 Carat Round Brilliant Cut Diamond Platinum Solitaire Ring
By Antinori Fine Jewels
Located in Chicago, IL
Absolutey breathtaking old mine cut certified diamond has excellent FLAWLESS clarity, beautiful
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 1.01 carat Colorless & Internally Flawless Diamond Ring
Located in New York, NY
diamonds include two impeccably cut baguettes, which add a touch of geometric elegance to the ring
Category

2010s Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified Platinum Round Brilliant Cut Diamond Ring 1.00ct D/IF
Located in London, GB
A gorgeous platinum diamond solitaire ring. The engagement ring features a round brilliant cut
Category

21st Century and Contemporary British Engagement Rings

Materials

Diamond, Platinum

GIA Certified 2.23 Carat Platinum Round Brilliant Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
Elegant Platinum Solitaire Engagement Ring with a 2.23 Carat Round Brilliant Diamond by Antinori Di
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 1.98 Carats Diamond D / Internally Flawless EX EX EX Ring
Located in Massafra, IT
, very very sparkly, and round brilliant cut natural diamonds on lateral ring . It is a investment
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Certified 1.01 Carat Flawless, Top Wesselton Diamond Solitaire, White Gold Ring
Located in Berlin, DE
An almost perfect Diamond Solitaire, 18 Karat white Gold Ring. 1.01 Carat Flawless Top Wesselton
Category

Late 20th Century Modern Solitaire Rings

Materials

White Diamond, 18k Gold, White Gold

GIA Certified 3 Ct. Fancy VIVID Yellow Diamond Engagement FLAWLESS Clarity Ring
Located in Chicago, IL
luxurious platinum band, the ring is complemented by a pave of round diamonds enhancing its overall allure
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

GIA Certified 5.05 Carat Round Diamond Platinum Ring 3Excellent Cut with Pavè
By Antinori Fine Jewels
Located in Chicago, IL
This stunning ring features a 5.05 carat round cut diamond as its centerpiece, certified by GIA for
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 7.01 Carat Round Cut Diamond Engagement Solitaire Ring in Platinum
By Antinori Fine Jewels
Located in Chicago, IL
This magnificent engagement solitaire ring features a breathtaking 7.01 carat round cut diamond as
Category

2010s Unknown Contemporary Engagement Rings

Materials

White Diamond, Diamond, Platinum

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Flawless Round Cut Diamond Ring For Sale on 1stDibs

Find the exact flawless round cut diamond ring you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Platinum, Gold and 18k Gold — can elevate any look. 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 alternatives. There aren’t many items for men if you’re seeking a flawless round cut diamond ring, as most of the options available are for women and unisex.

How Much is a Flawless Round Cut Diamond Ring?

On average, a flawless round cut diamond ring at 1stDibs sells for $58,500, while they’re typically $15,500 on the low end and $1,500,000 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.