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Round Platinum Diamond Engagement Ring

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0.74 Carat Round Diamond Platinum Engagement Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Round Shape Engagement Ring. The ring is Platinum. The center Stone is a Round 0.74 Carats I SI1
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

11 Carat Round Diamond Engagement Ring
By Diamond Scene New York
Located in New York, NY
An AMAZING ROCK! GIA certified 11.07 carat Round Brilliant cut diamond. Set in a 4 prong custom
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.03 Carat F VVS2 Round Diamond Platinum Engagement Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Solitaire Engagement Ring The ring is Platinum The center Is Round Cut Stone, GIA Certified 1.03
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

White Diamond, Diamond, Platinum

1.20 Carat Platinum Engagement Round Diamond Solitaire Twist Bespoke 4 Claw Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 1.20 Carat White
Category

2010s British Modern Engagement Rings

Materials

Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite, Topaz, Tourma...

Platinum 0.25 Carat Round Diamond Twisted Love 4 Prong Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.25 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom design Material: platinum Center Diamond: 1 round brilliant cut = 1.27ct Color : G
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 2.30ct Color: J Clarity: SI2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round European Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: Custom Material: platinum Center Diamond: 1 round European cut = 0.40ct Color: I Clarity
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 0.99ct Color: D Clarity: VVS1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 1.73ct Color: K Clarity: VS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 1.20ct Color: H Clarity: VVS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 1.00ct Color: G Clarity: VS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 1.06ct Color: G Clarity: VS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

3.29 Carat Round Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
A stunning engagement ring featuring a large 3.29 carat round brilliant cut diamond. It is
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

0.50 Carat Round Diamond Bespoke Twisted Love 4 Prong Platinum Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.50 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

Platinum Engagement 0.68 Carat Round Diamond Bespoke Twisted Love 4 Prong Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.68 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

Platinum 0.40 Carat Round Diamond Twisted Love 4 Prong Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.40 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

Platinum Engagement 0.82 Carat Round Diamond Bespoke Fancy Twist 4 Prong Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.82 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.94 Carat Platinum Engagement Round Diamond Bespoke Fancy Vine 4 Prong Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.94 Carat White
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

Charming Round Cut Diamond Platinum Engagement Ring
Located in New York, NY
This charming platinum ring centers a sparkling round cut diamond that weighs 0.45ct. and is
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring
Located in Princeton, NJ
Round Brilliant Cut diamonds weighing 1.69 carats in total weight. The cut is graded as excellent
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

Cartier Round Diamond Halo Platinum Engagement Ring
By Cartier
Located in Greenwich, CT
Destinée, a gorgeous Diamond Engagement Ring designed by Cartier holding a 1.03 carat round Diamond
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Bespoke Platinum GIA 2.98 CT E VS1 Emerald Round Halo Diamond Engagement Ring
By Hasbani Diamonds
Located in London, GB
in the center of the Ring. It features 0.97 Carat H SI1 Round Brilliant Diamonds around the sides
Category

2010s British Modern Engagement Rings

Materials

Diamond, Topaz, Blue Sapphire, Ruby, Emerald, Aquamarine, Amethyst, Whit...

Platinum Vintage Round European Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round european cut = 0.50ct Color: H Clarity: SI1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Vintage Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 0.37ct Color: H Clarity: VS2
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Three Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: Platinum Diamond: 1 round brilliant cut = 1.12ct Color: I Clarity: SI1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Ethonica Classic Round Diamond Engagement Ring in Platinum
Located in New York, NY
This engagement ring is very classy and powerful look. 0.61 carat brilliant round diamond is
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Cartier Platinum Round Brilliant Cut Diamond Engagement Ring
By Cartier
Located in Scottsdale, AZ
Designer: Cartier Material: platinum Diamond: 1 round brilliant cut = 1.36ct Color: G Clarity: VVS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Gold Round Brilliant Cut Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 1 round brilliant cut = 1.20cttw Color: I Clarity: SI1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Estate Platinum Flower Round Diamond Engagement Ring
Located in Scottsdale, AZ
Estate platinum flower round diamond engagement ring. Showcasing 21 round brilliant cut diamonds
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Cartier Platinum Round Brilliant Cut Diamond Engagement Ring
By Cartier
Located in Scottsdale, AZ
Designer: Cartier Material: platinum Diamond: 1 round brilliant cut = 0.42ct Color: F Clarity: VS1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Engagement Ring with Round and Baguette Diamonds
By Diana M. Jewels
Located in New York, NY
Platinum engagement ring features 7.01 carat of round diamond I-vs2 (rdc3278) and 1.00 ct baguette
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Gold, Platinum

4.01ct Round Brilliant Cut Diamond Engagement Ring, Platinum
Located in New York, NY
A stunning 4-carat diamond engagement ring, accented by seven diamonds on each shoulder, all prong
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1.30 Carat Round Brilliant Diamond Platinum Engagement Ring
Located in Sherman Oaks, CA
Gorgeous Three Stone Engagement Ring in Platinum Features Three 'Round Brilliant' Cut Stones Center
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1930s Platinum Engagement Ring with 1.00 Round Diamond
Located in New York, NY
The beautiful engagement ring is finely crafted in platinum with center diamond weighing
Category

Vintage 1930s American Engagement 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

Platinum Sapphire & Diamond Engagement Ring - 900 Round .77ctw
Located in Greensboro, NC
Sapphire Treatment: Heating Carat(s): .57ct Cut: Round Color: Blue Natural Diamonds Carat(s): .20ctw Cut
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Platinum & Diamond Engagement Ring
Located in San Francisco, CA
With great brilliance and flash, this platinum engagement ring shines far beyond it's size, It
Category

Late 20th Century Unknown Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum Round Brilliant Cut Diamond Engagement Ring
By Tiffany & Co.
Located in Scottsdale, AZ
Designer: Tiffany & Co. Material: platinum Diamond: 1 round brilliant cut = 0.23ct Color: F
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

0.65ct Round Brilliant Cut Diamond Engagement Ring, Diamond Halo, Platinum
Located in New York, NY
A vintage-style engagement ring featuring a vibrant round brilliant cut diamond at approximately
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Engagement Ring - 900 Round Brilliant 2.07ctw GIA
Located in Greensboro, NC
Natural Diamond Carat(s): 1.03ct Cut: Round Brilliant Color: E Clarity: I1 Certified by: GIA Report Number
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Certified .85 Carat Round Diamond Platinum Engagement Ring
Located in Stamford, CT
Original 1930's Art Deco diamond engagement ring. This ring begins with a dazzling .85ct round
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

0.25 Carat Diamond Platinum Engagement Ring Setting Mounting
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Diamond Platinum Engagement Ring Setting Mounting The ring is Platinum There are 2 Tapered Diamond
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

White Diamond, Diamond, Platinum

.75 Carat Round Diamond Baguette Halo Platinum Engagement Ring
Located in Stamford, CT
Round and bagguette diamond ring. Round center stone set in platinum with 2 baguette side diamonds
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

.84 Carat Round Baguette Diamond Platinum Solitair Engagement Ring
Located in Stamford, CT
Classic platinum diamond solitaire engagement ring. Platinum setting with baguette side stones. The
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

Platinum Art Deco Inspired Round Diamond Engagement Ring
Located in Boca Raton, FL
Platinum Art Deco Inspired Round Diamond Engagement Ring The Platinum Art Deco Inspired Round
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond

5.02ct Diamond Platinum Engagement Ring
Located in New York, NY
This is an amazing platinum engagement ring. The ring is set with sparkling round cut diamond that
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Leon Mege platinum halo engagement rings with round diamond
By Leon Mege
Located in New York, NY
The beautiful “Amalfi” halo ring with a round diamond surrounded by micro pave halo is a part of
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Round Brilliant Cut Diamond Engagement Ring 2.24ct I/VS2
Located in London, GB
A beautiful platinum diamond engagement ring. The solitaire is adorned with a round brilliant cut
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Diamond Engagement Ring in Platinum
Located in Beverly Hills, CA
Diamond engagement ring in platinum centering one round brilliant cut diamond weighing 1.12 ct
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Diamond Engagement Ring .65ct Round Brilliant G-H VS Platinum
Located in Dearborn, MI
Diamond Engagement Ring .65ct Round Brilliant G-H VS Platinum Featuring a Magnificent .50ct G-H
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

French 1920s Diamonds Platinum Round Shape Engagement Ring
Located in Poitiers, FR
Ring in platinum, dog head hallmark. Charming antique ring of the 1920s, it represents a round
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage 1.02cts Round Cut Diamond Platinum Geometric Engagement Ring
Located in Miami, FL
An exquisite Round Cut Engagement Ring with a Geometric style. Bringing the beauty of the Art Deco
Category

Vintage 1940s North American Art Deco Engagement 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

5.05 Carat Round Blue Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Round sapphire and diamond handmade engagement ring. Rich blue with a hint of purple round sapphire
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

Estate Diamond Platinum Engagement Ring
Located in San Francisco, CA
A lovely estate platinum ring, centering a transitional round brilliant-cut diamond weighing an
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Platinum

1.22ct Round Cut Aquamarine Engagement Ring, Diamond Halo, Platinum
Located in New York, NY
. Ring Size: 6.5 US, Resizable Metal: Platinum Stone: Diamond, Aquamarine, Sapphire Stone Cut: Round Cut
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Sapphire, Platinum

Rachel Koen 0.75cttw Bezel Round Cut Diamond Engagement Ring Platinum
Located in New York, NY
This elegant and classic diamond engagement ring is crafted in highly polished platinum. Features a
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

Rachel Koen 0.95cttw Round Cut Diamond Engagement Ring Set Platinum
Located in New York, NY
engagement ring is encrusted with a prong set center round brilliant cut diamond weighing 0.30 carat with
Category

2010s Modern 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

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Round Platinum Diamond Engagement Ring For Sale on 1stDibs

Find the exact round platinum diamond engagement ring you’re shopping for in the variety available on 1stDibs. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a round platinum diamond engagement ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. 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 round platinum diamond engagement ring — no matter the origin — is easy, but Tiffany & Co., Antinori Fine Jewels and Cartier each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also cushion cut cut and brilliant cut cut versions available here, too. Finding a round platinum diamond engagement ring for sale for women should be easy, but there are 731 pieces available to browse for unisex as well as men, too.

How Much is a Round Platinum Diamond Engagement Ring?

The price for a round platinum diamond engagement ring starts at $1 and tops out at $1,500,000 with these rings, on average, selling for $9,846.

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.