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Platinum 3 Round Diamond Ring

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Modern Platinum Band 3 Carat Natural Baguette & Round F VS Diamond Cocktail Ring
By Radiam Diamond Company
Located in Los Angeles, CA
Modern Platinum 3 Carat Natural Diamond Band. Set in this piece are 17 Natural F-G color Baguette
Category

2010s American Modern Band Rings

Materials

Diamond, Platinum

3 Carat Round Diamond Engagement Ring in Platinum
By Hannah Florman
Located in Boston, MA
Customizable diamond engagement ring, shown with a GIA certified 3 carat round briliant diamond
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Embrace the unparalleled allure of this exquisite GIA certified 3 carat round cut diamond platinum
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

3 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
ring, weighing 3 grams and sized at 7, features a striking centerpiece: a Natural Round Brilliant Cut
Category

2010s Italian Contemporary Three-Stone Rings

Materials

Diamond, Platinum

0.41ctw Round Diamond 3-Stone Engagement Ring Platinum Size 8.25
Located in McLeansville, NC
Gemstone Information: - Natural Diamonds - Total Carats - 0.41ctw Cut - Round Brilliant Color - F
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate G Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
of 0.25 carat round brilliant cut. This is a stunning diamond engagement ring set in platinum with
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate E Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
stunning diamond engagement ring set in platinum with 950 British Hallmarked. Colour: E Clarity: VS2
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Spectacular engagement ring crafted in platinum, showcasing a GIA certified round brilliant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Blue Topaz 2.20 Carat Oval 0.20 Carat Round Diamond Platinum Halo Ring
By Hasbani Diamonds
Located in London, GB
is set with 3 claws for a sparkly star effect look. This ring has a total gem weight of 2.40 Carat
Category

2010s British Modern Engagement Rings

Materials

Diamond, White Diamond, Topaz, Blue Topaz, Platinum

Tiffany & Co. 3 Carat Round Brilliant Cut Diamond Platinum Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co. 3.08 ct Platinum Round Brilliant Cut Diamond Solitaire Engagement Ring. The ring
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

3/4ctw Diamond Ring In Platinum
Located in Bloomington, MN
3/4ctw Diamond Ring In Platinum Discover the luxurious appeal of this Ring, exquisitely crafted
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Diamond, Platinum

Tiffany & Co. Classic Band Ring, Platinum w/ 3 Round Brilliant Diamonds
By Tiffany & Co.
Located in Houston, TX
This classic band ring features 3 round brilliant diamonds and Tiffany & Co. engraving. It is 4mm
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

3 Carat Round Diamond Engagement Ring with Delicate Pave Setting Platinum
By Hannah Florman
Located in Boston, MA
GIA certified 3 carat round briliant diamond engagement ring with G color and VS2 clarity (**this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Tacori Platinum 3 Carat Round Pear Shape Diamond Wedding Ring
By Tacori
Located in New York, NY
Tacori Platinum 3 Carat Round Pear Shape Diamond Wedding Ring Luxurious in every way, this ring is
Category

2010s American Romantic Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Round Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
diamond ring offers fantastic size and sparkle! Between the large 3.05ct center diamond and the
Category

2010s Italian Modern Engagement Rings

Materials

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

Platinum Shayna Petite Design Round Diamond Ring 'Center 1/3 Carat'
Located in San Francisco, CA
This petite handcrafted earthy, organically designed ring features a 1/3 carat center round cut
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Delicate Nianna Marquise & Round Diamond Ring '1/3 Ct. tw'
Located in San Francisco, CA
This delicate ring features alternating round brilliant and marquise cut diamonds in 0.35-carat
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Bespoke Halo Mount for 3-5 Carat Yellow White Diamond Oval Shape Platinum Ring
By Hasbani Diamonds
Located in London, GB
features 0.13 Carat Round Diamond Fancy Intense Yellow giving this Double Halo Diamond Engagement Ring an
Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Pink Diamond, Eme...

Tiffany & Co. Platinum 3 Round Brilliant Diamond Engagement Ring .75cts #16954
By Tiffany & Co.
Located in Washington Depot, CT
Tiffany & Co. Platinum 3 Round Brilliant Diamond Engagement Ring .75cts This beautiful platinum
Category

1990s Engagement Rings

Materials

Diamond, White Diamond, Platinum

Tiffany & Co. IDEAL CUT 3 Carat Round Brilliant Cut Diamond Platinum Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co. 3 Carat Round Brilliant Cut Diamond Platinum Ring This Tiffany & Co. Diamond
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

1.00ctw 3-Stone Diamond Platinum Engagement Ring
Located in Houston, TX
This engagement ring features 1.00ctw of three prong-set round brilliant diamonds in a platinum
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Diamond 3-Row Platinum Band Ring
Located in Beverly Hills, CA
A chic and stylish platinum band featuring 3-rows of bright white diamonds. The two outer rows of
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Platinum

Platinum Briana Diamond Ring '1/3 Carat'
Located in San Francisco, CA
: ROUND Metal: Platinum Metal Weight: 2.2 Setting Type: Prong Shank Height: 2MM Shank Height: 2.6 Material
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum 3 Diamond Wedding Band Ring
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum 3 Diamond 3mm Wedding Band Ring 5.5 Metal: Platinum Size: 5.5 Weight: 5.10
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Cartier Three 3-Color Platinum Round Brilliant Cut Diamond Engagement Ring
By Cartier
Located in Rome, IT
Authentic 2.02 ct Cartier Solitaire Platinum Pear Brilliant Cut Diamond Engagement Ring. The ring
Category

2010s Italian Modern Solitaire Rings

Materials

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

GIA Ideal Cut Round Diamond 3 Carat Diamond Ring
By Hearts On Fire
Located in Rome, IT
diamond weights 3 carats plus 0.50 carats of round diamond pave ring set in solid platinum
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Modern Diamonds Platinum Lace Round Ring
Located in Poitiers, FR
Ring in platinum. Presenting a round setting, this sublime diamond ring is crafted in platinum lace
Category

21st Century and Contemporary French Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vivid Diamonds 3 Carat Diamond Eternity Band
By Vivid Diamonds
Located in Miami, FL
Exquisite eternity band crafted in Platinum, showcasing 18 stunning round brilliant cut diamonds
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Platinum

Round Mele Diamond Platinum Swirl Design Ring
Located in Stamford, CT
sizeable. 15 round Mele diamonds approx. total weight .36cts. Tested: Platinum. 4.4 grams. 3/16 x 7
Category

Vintage 1930s Art Deco Band Rings

Materials

Diamond, Platinum

GIA 4.64 Carat K/VS1 Round Brilliant Diamond Platinum 3-Stone Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
A shiny 4.64 Ct Round Brilliant K/VS1 GIA Certified center Diamond set in a fine Platinum 3 Stone
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Eternity Wedding Band - Round 1.04ctw Channel Set Ring Sz 3 1/2
Located in Greensboro, NC
Size: 3 1/2 Metal Content: Platinum Stone Information Natural Diamonds Carat(s): 1.04ctw Cut
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Platinum Sevilla Diamond Ring '3/4 Ct. tw'
Located in San Francisco, CA
This ring features five(5) floating Brilliante round diamonds set in "U" Shaped delicate prongs on
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Star Fashion Diamond Ring '2/3 Carat'
Located in San Francisco, CA
This stunning ring features round brilliant diamonds micro-prong-set in three-row. Experience the
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Willow Fashion Diamond Ring '3/4 Carat'
Located in San Francisco, CA
Gemstone Type: NATURAL DIAMOND Side Gemstone Shape: ROUND Metal: Platinum Metal Weight: 3.29 Setting Type
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Micro-Prong Diamond Ring '3 Ct. Tw'
Located in San Francisco, CA
Gemstone Color: WHITE Side Gemstone Type: NATURAL DIAMOND Side Gemstone Shape: ROUND Metal: Platinum
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Winte Diamond Ring '3/4 Ct. Tw'
Located in San Francisco, CA
This Delicate ring features Seven (7) floating Brilliante round diamonds set in "U" Shaped delicate
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum 3 Stack Emerald And Diamond Cocktail Ring
Located in New York, NY
diamonds set in luxurious platinum creates a ring that's as versatile as it is elegant. **Endless
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Emerald, Platinum

Platinum Abigail Diamond Ring '1/3 Ct. Tw'
Located in San Francisco, CA
This stackable double ring features two baguette diamond set within bars of delicate, precious
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

7.30 Carats Diamond Three Row Platinum Band Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Sparkling 3 Row Diamond Band The ring is Platinum PLT 950 There are 7.30 Carats in Diamonds E/F VVS
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

Platinum Orchid Diamond Cluster Ring '3/4 Carat'
Located in San Francisco, CA
This sparkling band features round brilliant diamonds set in gleaming shared prongs. Experience the
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum 3 Diamond Wedding Band Ring 5
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum 3 Diamond 3mm Wedding Band Ring 5 Metal: Platinum Size: 5 Weight: 5.0 grams
Category

2010s American Band Rings

Materials

Diamond, Platinum

Platinum 10.32 Ct Round Brilliant Cut Diamond Ring
Located in Palm Desert, CA
Set in Platinum, weighing 11 grams, is one 10.32 carat Round brilliant Cut diamond, Color range of
Category

Late 20th Century More Rings

Materials

Diamond, Platinum

Vintage Platinum 1950s 1.31 Carat Round Diamond Ring
Located in Boston, MA
Vintage Platinum 1950s 1.31ct Round Diamond Ring - Center circular brilliant transitional cut
Category

Mid-20th Century American Retro Engagement Rings

Materials

Diamond, Platinum

Platinum Akoya Pearl & Diamond Ring - Round Brilliant .34ctw
Located in Greensboro, NC
Size: 4 3/4 Sizing Fee: Up 2 sizes for $80 or Down 1 size for $60 Metal Content: Platinum Stone
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Pearl, Platinum

Diamond and Sapphire 3 Row Platinum Vintage Band Ring
Located in Montreal, QC
Simply Beautiful Diamond and Sapphire Platinum Vintage Band Ring. 3 rows securely Hand set with
Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, Sapphire, Platinum

Platinum GIA French Pave Diamond Ring '3 Ct. tw'
Located in San Francisco, CA
Gemstone Color: WHITE Side Gemstone Type: NATURAL DIAMOND Side Gemstone Shape: ROUND Metal: Platinum
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

3.28 Carat Round Cut Ruby and Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense brilliant round cut Ruby weighing 3.28 carats surrounded
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Ruby, Diamond, Platinum

Platinum Micro-Prong Diamond Ring '3/4 Ct. Tw'
Located in San Francisco, CA
Gemstone Color: WHITE Side Gemstone Type: NATURAL DIAMOND Side Gemstone Shape: ROUND Metal: Platinum
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Minimalist Tivron Diamond Ring '1/3 Ct. Tw'
Located in San Francisco, CA
This minimalist ring features eleven (11) round brilliant diamonds three-prong set in this delicate
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

4 carat Round White Diamond Solitaire Mens Platinum Ring
By Gad & Co.
Located in Miami, FL
A solitaire prong setting with a smooth 950 platinum mounting. A sizable 4-carat natural diamond
Category

2010s Modern Solitaire Rings

Materials

White Diamond, Platinum

Tiffany & Co. Platinum 3 Diamond 3mm Wedding Band Ring 5
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum 3 Diamond 3mm Wedding Band Ring 5 Metal: Platinum Size: 5 Weight: 5.0 grams
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Platinum Minimalist Marjan Diamond Ring '1/3 Ct. Tw'
Located in San Francisco, CA
This minimalist ring features alternating round brilliant and marquise shape diamonds prong set on
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

0.59ctw Round Diamond Solitaire Engagement Ring 900 Platinum Size 5
Located in McLeansville, NC
Gem: Natural Diamond - 0.51 Carats, Round Brilliant Cut, G Color, VS2 Clarity - Natural Diamonds
Category

2010s Engagement Rings

Materials

Diamond, Platinum

.44 Carat Baguette Round Diamond Platinum Wedding Band Ring
Located in Stamford, CT
Diamond wedding band. 3 round diamonds separated by 2 baguette diamonds in a platinum setting. 3
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

GIA Certified 1.06 Carat Round Diamond Halo Platinum Ring
By FERRUCCI
Located in New York, NY
GIA Certified 1.06 Round diamond, G color, IF clarity, Internally Flawless with Triple Excellent
Category

2010s American Engagement Rings

Materials

Diamond, White Diamond, Platinum

Platinum Shiran Two Rows Diamond Ring '1/3 Carat'
Located in San Francisco, CA
This band features two rows of Micro- Prong-set round brilliant diamonds. Experience the difference
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum Round Brilliant Cut Diamond Solitaire Ring
By Tiffany & Co.
Located in Rome, IT
Tiffany & Co. Platinum 0.85 ct Total Weight Round Brilliant Cut Diamond Solitaire Engagement Ring
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

2.19 Carat 3 Stone Diamond Engagement Ring Platinum in Stock
Located in Boca Raton, FL
Platinum 2.19ctw 3 Stone Diamond Engagement Ring This platinum round brilliant diamond engagement
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat
Located in Greensboro, NC
Surprise the love of your life with her dream ring! Crafted in heirloom-quality 900 platinum, this
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

0.75CT Platinum Eternity Round Diamond Wedding Anniversary Band Ring
Located in New York, NY
GORGEOUS Round Brilliant cut Diamond Ring from our EXQUISITE Estate Diamond Band design collection
Category

2010s North American Wedding Rings

Materials

Diamond, Platinum

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Platinum 3 Round Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate platinum 3 round diamond ring for your needs in our varied inventory. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. Our collection of these items for sale includes 3226 vintage editions and 4184 modern creations to choose from as well. Making the right choice when shopping for a platinum 3 round diamond ring 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. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. Finding an appealing platinum 3 round diamond ring — no matter the origin — is easy, but Tiffany & Co., LB Exclusive and Cartier each produced a popular version that is worth a 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 baguette cut and brilliant cut alternatives. There aren’t many items for men if you’re seeking a platinum 3 round diamond ring, as most of the options available are for women and unisex.

How Much is a Platinum 3 Round Diamond Ring?

Prices for a platinum 3 round diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $4,900,000, while this accessory, on average, fetches $4,804.

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. 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

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.