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3 Carat Diamond And Platinum Rings

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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

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
A bespoke ring with one of the best colors and clarity center diamond, 3.00 carat cushion cut
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carats Diamonds Platinum Ring
Located in PARIS, FR
Ring trilogy in platinum 950 thousandths. set with 3 diamonds. of which a brilliant of
Category

20th Century French Engagement Rings

Materials

Diamond, Platinum

3 Carat Ruby and 1.2 Carat Diamond Platinum Ring
By EstatebyJR
Located in New York, NY
This stunning 3 carat Ruby and Diamond ring is a true statement piece that exudes elegance and
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

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

3 Carat Sapphire Diamond Platinum Ring
Located in New York, NY
This fabulous platinum ring ring is centered with a lovely emerald cut sapphire that weighs 3.00ct
Category

20th Century Cluster Rings

Materials

Diamond, Sapphire, Platinum

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

Bespoke Halo Mount for 3-5 Carat Yellow White Diamond Oval Shape Platinum Ring
By Hasbani Diamonds
Located in London, GB
This Spectacular Bespoke mount is suitable for a 3 - 5 Carat center diamond with 0.93 Carat of
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Tanzanite, Topaz, Tourmaline, Turquoise, S...

1.78 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.78 carat diamond and platinum solitaire ring; part of our diverse
Category

Vintage 1910s Unknown Solitaire Rings

Materials

Diamond, Platinum

Art Deco 3 Carat Sapphire and Diamond Platinum Filigree Ring
Located in Montgomery, AL
carats. The platinum setting features one diamond north and south of the center sapphire. These two
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 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 3 Stone, 1.63 Carat Ruby and .61 Carat Diamond Ring
By Cellini
Located in New York, NY
Classic 3 stone platinum ring. This ring centers a round brilliant diamond weighing 0.61 carats
Category

Vintage 1980s American Contemporary Bridal Rings

Materials

Diamond, Ruby, 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

Blue Topaz, Topaz, White Diamond, 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

Vivid Diamonds 3 Carat Diamond Eternity Band
By Vivid Diamonds
Located in Miami, FL
weighing approximately 3 carats total, F color, VS clarity. Each diamond was carefully selected, perfectly
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Emerald Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
VS2 Clarity Emerald cut diamond ring. The ring consists of one emerald cut diamond weighing 3 carat
Category

2010s Italian Modern Engagement Rings

Materials

Emerald, White Diamond, Diamond, Platinum

3 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
exquisite 14K Yellow Gold & Platinum Solitaire Engagement Ring adorned with a captivating 3.04
Category

2010s Italian Contemporary Three-Stone Rings

Materials

Diamond, Platinum

9.70 Carat Kunzite Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
A timeless classic 3-stone platinum ring featuring a fine bright pink kunzite. The kunzite weighs
Category

21st Century and Contemporary North American Fashion Rings

Materials

Diamond, Kunzite, 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

1.21 Carat Emerald Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
A fine and luscious emerald weighing 1.21 carats takes center stage of this 3-stone ring. It has a
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Emerald, Platinum

Edwardian Platinum 1.00 Carat Sapphire and Diamond 3-Stone Ring
Located in Narberth, PA
A beautiful diamond and sapphire three stone ring from the Edwardian (ca1910s) era! This stunning
Category

Vintage 1910s Unknown Edwardian Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

Flawless GIA Certified 3 Carat Asscher Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
3 Carat Asscher cut Diamond shouldered by trapezoid diamonds on a platinum band. Accompanied by Gia
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

1.00 Carat 3-Row Diamond Platinum Eternity Wedding Band Ring
Located in Stamford, CT
Diamond platinum eternity wedding band ring. 90 round brilliant cut pave set diamonds, on top
Category

Late 20th Century Band Rings

Materials

Diamond, Platinum

1960s 1.82 Carat Sapphire and 3 Carat Total Weight Diamond Ring in Platinum
Located in Delray Beach, FL
Vintage 1960s Sapphire & Diamond Ring. Sapphire is 1.82 Carats. Diamonds are 3.00 carat total
Category

Vintage 1960s Unknown Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

3 Carat Natural Brazilian Alexandrite and Diamond Three-Stone Platinum Ring
By RAF
Located in New York, NY
-heat Brazilian Alexandrite weighing well over three carats, accented with two shield step-cut diamonds
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, Platinum

10.44 Carat Rubellite Tourmaline Diamond Platinum 3-Stone Ring
Located in Beverly Hills, CA
10.44 Carat Rubellite Tourmaline Diamond Platinum 3-Stone Ring A juicy and vibrant rubellite
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Rubelite, Tourmaline, Platinum

Vintage Platinum Art Deco 3-Stone Diamond Ring .84 Carat and .15 Carat
Located in Boston, MA
Vintage Platinum Art Deco 3 Stone Diamond Ring - Center European cut diamond weighs .84ct and is I
Category

Vintage 1930s American Art Deco Engagement Rings

Materials

Diamond, Platinum

2.08 Carat Pink Sapphire Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
A classic stylish 3-stone gemstone platinum ring featuring a fine vivid pink sapphire! The sapphire
Category

21st Century and Contemporary American Fashion Rings

Materials

Diamond, Pink Sapphire, Platinum

1.82 Carat Diamond and Platinum Halo Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning antique and contemporary 1.82 Ct diamond and platinum halo style halo ring; part of our
Category

Early 2000s Unknown Engagement Rings

Materials

Diamond, Platinum

Platinum 3 Stone Emerald Cut 2.25 Carats Diamonds Ring
Located in Miami, FL
Offered here is an elegant three stones ring, handmade in noble 950 platinum. Centered with a 1.01
Category

2010s North American Contemporary Engagement Rings

Materials

Diamond, Platinum

3, 56 cts emerald and diamonds ring in platinum
Located in PARIS, FR
Stones: Emerald of 3.56 cts and 34 diamonds of 1.10 cts Material: Platinum Dimensions: 1.6cm Weight
Category

Early 2000s Wedding Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 3 Carat Unheated Red Spinel Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Behold the allure of an exceptional and one-of-a-kind natural spinel, graced with a captivating rich red hue that radiates with lively brilliance. This remarkable gem showcases an id...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Spinel, Platinum

3, 00 Carat Chrysoberyl "Cats-Eye" and Baguette Cut Diamond Platinum Ring
Located in Miami, FL
Diamonds totaling 0.25 Carats, and set in PT950 Platinum (95% purity). Details: ✔ Gemstone: Chrysoberyl
Category

Late 20th Century Cocktail Rings

Materials

Chrysoberyl, Diamond, White Diamond, Platinum

GIA Certified 3 Carat Round Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
diamond encrusted setting, this ring is a head turner! Highlights: - Large 3.05 carat center diamond
Category

2010s Italian Modern Engagement Rings

Materials

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

1.0 Carat Diamond and 950 Platinum Three-Stone Diamond Eternity Ring 3
Located in GB
diamond ring in a four claw platinum 950 setting A very good looking ring with bright clear diamonds
Category

21st Century and Contemporary English Modern Three-Stone Rings

Materials

Diamond, Platinum

Vintage 3.80 Carat Diamond and Platinum Twist Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage 3.80 carat diamond and platinum twist style engagement ring; part of our diverse
Category

1990s Unknown Modern Cocktail Rings

Materials

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

Contemporary 1.52 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.52 carat diamond engagement ring in platinum; part of our diverse
Category

Early 2000s British Contemporary Solitaire Rings

Materials

Diamond, Platinum

GIA 5.02 Carat Radiant-Cut 3 Stone Diamond and Platinum Ring
By Mellen
Located in New York, NY
This scintillating ring features a GIA certified 5.02 carat rectangular radiant-cut F color VS1
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Antique 0.63 Carat Diamond and Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique Art Deco 0.72 carat diamond and platinum cluster ring; part of our
Category

Vintage 1920s Unknown Art Deco Cluster Rings

Materials

Diamond, Platinum

Scarselli 3 carat VIVID Yellow Radiant Cut Diamond Platinum Engagement Ring
By SCARSELLI
Located in New York, NY
diamonds in Platinum and 18 karat Yellow Gold. This Scarselli Classics ring is available in many
Category

2010s American Contemporary Engagement Rings

Materials

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

3 Carat Pink, Yellow, White Multi Cut Diamond Cluster Platinum And 18K Gold Ring
By Gad & Co.
Located in Miami, FL
Pink, Yellow, White Multi Cut Diamond Platinum 950 & 18K Gold Ring. This cocktail ring is crafted
Category

21st Century and Contemporary North American Modern Cocktail Rings

Materials

Pink Diamond, Yellow Diamond, Diamond, Platinum, Yellow Gold, 18k Gold, ...

8.27 Carat Cats Eye Chrysoberyl Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
A classy and elegant platinum ring featuring a 8.27 carat cats eye chrysoberyl. Not only does the
Category

21st Century and Contemporary American Fashion Rings

Materials

Chrysoberyl, 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

3 Carat Pear Cut Tapered Baguette Diamond Platinum 18k Gold Ring
By Antinori Fine Jewels
Located in Rome, IT
exquisite 3-carat pear cut emerald captures the essence of elegance and sophistication, radiating vibrant
Category

2010s Italian Modern Engagement Rings

Materials

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

3 carats cabochon sapphire and old-cut diamonds ring
Located in PARIS, FR
Stones: 3 carats cabochon sapphire and old-cut diamonds for a total weight of 0.60 carat. Material
Category

Vintage 1930s Fashion Rings

Materials

Diamond, Sapphire, Platinum

French 20th Century 3, 07 Carats Diamond Platinum Solitaire Ring
Located in Poitiers, FR
Ring in Platinum, dog head hallmark. Antique solitaire ring set with an antique round-cut diamond
Category

Early 20th Century French Retro Solitaire 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

Antique Art Deco 3/4 Carat Diamond Ring in Platinum
Located in Charleston, SC
Details: 3/4 Carat of Diamonds Set in Platinum Overall weight: 3.2 grams Measurements: 16.4 mm down
Category

Early 20th Century Unknown Art Deco Bridal Rings

Materials

Diamond, Platinum

2.00ct Platinum Full Eternity Diamond Ring, Size 3 3/4
Located in Holtsville, NY
Platinum * Stone: Diamonds * Total Carat Weight: 2.00ct * Color: H * Clarity: SI-2UP equivalent * Ring
Category

2010s American Artist Band Rings

Materials

Diamond, Platinum

Edwardian 0.71 Carat Diamond and Platinum Solitaire Ring
Located in Montgomery, AL
setting is platinum and features many charming details. The center diamond measures approximately 0.71
Category

Early 20th Century Edwardian Solitaire Rings

Materials

White Diamond, Platinum

7.92 Carat Australian Black Opal Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
A classic 3-stone ring featuring a natural Australian black opal. It weighs 7.92 carats and has
Category

21st Century and Contemporary North American Fashion Rings

Materials

Diamond, Black Opal, Opal, Platinum

Aquamarine Diamond 3-Stone Platinum Ring
Located in Beverly Hills, CA
weighing close to 0.50 carat). Hand-fabricated in platinum, this classic 3-stone ring will never go out of
Category

21st Century and Contemporary American Fashion Rings

Materials

Aquamarine, Diamond, Platinum

Cable Diamond Wedding Band 18 Karat Yellow Gold and Platinum 1.31 Carat
By Harbor Diamonds
Located in New York, NY
carats. Color G Clarity SI Size 5 3/4
Category

1990s American Contemporary Band Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Tsavorite Diamond Platinum 3-Stone Ring
Located in Beverly Hills, CA
diamonds set on the sides of the tsavorite and weigh 0.25 carats. Hand-fabricated in platinum, this ring
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Tsavorite, Platinum

2.49 Carat Diamond and Platinum Trilogy Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 2.49 carat diamond and platinum three stone dress ring; part of our diverse
Category

21st Century and Contemporary Unknown Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat E Color Square Emerald Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
A gorgeus ring featuring a 3 carat square emerald cut diamond, according to the GIA report is G
Category

2010s Unknown Modern Solitaire Rings

Materials

Emerald, Diamond, White Diamond, Platinum

1.17 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This elegant platinum engagement ring is centered with a sparkling GIA certified old mine cut
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

Vintage Diamond 18 Carat and Platinum Ring
Located in Chipping Campden, GB
Classic diamond ring modelled in 18ct gold and platinum. This ring features a sparkling centre
Category

Vintage 1980s British Modern More Rings

Materials

Diamond, 18k Gold, Platinum

Vintage 1970s 1.21 Carat Diamond and Platinum Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 1.21 carat diamond and platinum dress ring; part of our
Category

Vintage 1970s Unknown Engagement Rings

Materials

Diamond, Platinum

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3 Carat Diamond And Platinum Rings For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of 3 carat diamond and platinum rings. These distinct designs — crafted with great care and often made from Platinum, Gold and 18k Gold — can elevate any look. Find a collection of 5275 vintage versions or 2941 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 17th Century to those produced as recently as the 21st Century. The designs in our inventory of 3 carat diamond and platinum rings bearing Modern or Art Deco hallmarks are very popular. There have been many well-made iterations of these items over the years, but those made by LB Exclusive, David Gross Group and Tiffany & Co. are often thought to be among the most beautiful. There are many round cut, oval cut and emerald cut 3 carat diamond and platinum rings for sale. When shopping our range of 3 carat diamond and platinum rings, you’ll find that there are less available pieces for men today than there are for women.

How Much are 3 Carat Diamond And Platinum Rings?

Prices for 3 carat diamond and platinum rings can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $360 and can go as high as $2,699,999, while 3 carat diamond and platinum rings, on average, fetch $5,093.

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.