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3 Carat Diamond Plat Ring

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Diamond Platinum Men's Wedding Band, Satin Plat 3/4 Carat Diamond Men's Ring
By Five Star Jewelry
Located in Austin, TX
total diamond weight of 0.68 carats! The diamonds are top quality, F-G color and SI-1 to VS-2 clarity
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Platinum

GIA 4.01CT Estate Vintage Emerald Diamond 3 Stone Engagement Wedding Plat Ring
Located in New York, NY
ring. The Prong Set Emerald Diamond is 3.40CT with measurements of 9.17x7.31x5.15mm; GIA Certified as
Category

Early 2000s Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

Shreve, Crump & Low GIA Certified 5.07 Carat I VS2 Radiant Cut Diamond Plat Ring
By Shreve, Crump & Low
Located in Boston, MA
& Low platinum 3-stone ring. The 5.07 carat radiant cut center diamond is accented by 2 half-moon shaped
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

2.00 Carat Cornflower Blue Ceylon Sapphire/ 1.50cts. Diamonds/ 18K Plat Ring
Located in Birmingham, MI
to world- class cutting, the center gems 'faces up' with a surface are exceeding that of most 3 carat
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold, Platinum

3 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
carat Round Brilliant Cut Diamond, destined to symbolize everlasting love and commitment. This elegant
Category

2010s Italian Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 5.13 Carat J VS2 Emerald Cut Diamond Plat Ring
By Shreve, Crump & Low
Located in Boston, MA
platinum 3-stone ring. The 5.13 carat emerald cut center diamond is accented by two 2 trapezoid cut
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

0.38 Carat Vintage Deco Old Euro Diamond Wedding Yellow Gold Plat Ring
Located in New York, NY
) Solitaire Engagement ring dazzles with 0.35CT OLD EUROPEAN Diamond Gemologic Certified H-I color, SI2
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

2.18tcw PLAT Fine Quality Rich Green Oval Emerald & Pear Diamond 3 Stone Ring
Located in Jupiter, FL
This stunning engagement ring features a 1.48-carat oval-cut emerald as the center stone, known for
Category

2010s Colombian Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Cartier Yellow Square Emerald Cut Diamond 3 Stone Ring in PLAT/18K Yellow Gold
By Cartier
Located in Philadelphia, PA
Golden Glow: Embrace the brilliance of this Cartier 3 stone diamond ring featuring a Fancy Intense
Category

2010s Unknown Three-Stone Rings

Materials

Diamond, Platinum, 18k Gold, Yellow Gold

Leo Diamond Princess Cut 0.95 Carat H SI1 Solitaire Ring 14 Karat White Gold
By The Leo Diamond
Located in San Diego, CA
(sizable) Total Carat Weight: 0.95CTS Diamond Shape: LEO Princess Diamond Color & Clarity: H / SI1
Category

2010s American Engagement Rings

Materials

Diamond, 14k Gold, White Gold

New Plat. & 18k Gold GIA Marquise Green Emerald w/ Trillion Diamond 3 Stone Ring
Located in Montclair, NJ
Here we have a magnificent emerald and diamond three-stone ring that is crafted in solid platinum
Category

2010s American Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold, 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

Diamond, Alexandrite, Platinum

Cellini Plat/18KT 4.27Ct. Sugarloaf Sapphire, Fancy Yellow & White Diamond Ring
By Cellini
Located in New York, NY
= 0.69 carats Round Fancy Yellow Diamonds =0.38 carats White Diamonds = 2.08 carats Ring size 6-3/4
Category

Early 2000s American Contemporary Bridal Rings

Materials

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

Victorian 2 ct Old Mine Cut Diamond Engagement Ring 18k Gold & Plat
Located in Joelton, TN
2.ct Old Mine Cut Victorian Diamond Engagement Ring. Clarity VS1-2, Color I-K Size 7 3/4 Circa
Category

Antique Late 19th Century English Late Victorian Engagement Rings

Materials

Diamond, Yellow Gold, 18k Gold, Platinum

Yellow Gold Diamond Vintage Two-Stone Bypass Ring 18k & Plat Mine .22ctw Engage
Located in Greensboro, NC
Yellow Gold & Platinum Stone Information Natural Diamonds Carat(s): .22ctw Cut: Mine Color: G - H
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Shreve, Crump & Low GIA Certified 3.20 Carat D SI1 Oval Cut Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
& Low classic platinum 3-stone ring. The 3.20 carat center oval diamond is accented by two pear shape
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 9.08 Carat F SI2 Oval Cut Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
& Low platinum 3-stone ring. The 9.08 carat center diamond is accented by two trillion cut diamonds with
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 5.03 Carat H VS1 Oval Cut Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
& Low classic platinum and 18k yellow gold 3-stone ring. The 5.03 carat center oval diamond is accented
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

1930s 1.77ct Round Brilliant Cut Diamond Solitaire Engagement Ring in 18ct&Plat
Located in Yorkshire, West Yorkshire
This beautifully sparkly solitaire ring holds an earlier generation Round Brilliant Cut Diamond
Category

Vintage 1920s British Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Shreve, Crump & Low 6.08 Carat Zambian Emerald and Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
in a handcrafted Shreve, Crump & Low 3-stone platinum ring. This captivating green emerald measures
Category

2010s American Three-Stone Rings

Materials

Emerald, Platinum

Vintage 1930s 3-Stone European Cut Diamond Platinum Ring 1.75 Carat
Located in Boston, MA
Vintage 1930s 3 Stone European Cut Diamond Platinum Ring 1.75ct - The center diamond weighs
Category

Vintage 1930s American Art Deco Three-Stone Rings

Materials

Diamond, Platinum

Cellini Plat Fancy Colored 1.43Ct Pink 1.34Ct Yellow 1.53Ct Grey Diamond Ring
By Cellini
Located in New York, NY
Classic and elegant is the best way to describe this 3 stone fancy colored diamond ring. The 3
Category

1990s Contemporary Three-Stone Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, Platinum

1.89 Carat GIA Certified Onyx Diamond Engagement Ring
Located in New York, NY
This amazing platinum ring centers a sparkling GIA certified old European cut diamond that weighs
Category

Early 20th Century Engagement Rings

Materials

Diamond, Onyx, 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

Shreve, Crump & Low 6.22 Carat Oval Cut Pink Sapphire and Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
This sapphire and diamond 3-stone ring is offered by Shreve, Crump & Low. This oval cut pink
Category

2010s American Three-Stone Rings

Materials

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

GIA 3.47ct Asscher Cut Diamond 3 Stone Engagement Wedding Platinum Ring
Located in New York, NY
Timeless Estate GIA 3.47ct Asscher Cut Diamond Engagement Anniversary 3 Stone Platinum Ring. This
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

1.01 Carat Diamond Emerald Engagement Ring
Located in New York, NY
ring is stamped PLAT and weighs 3 grams. The ring is size 6 1/2 but it can be resized. Inventory
Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

3.05 Carat Sapphire Diamond Engagement Ring
Located in New York, NY
0.25ct. graded G color with VS clarity. The ring is stamped 3-25-95 PLAT 750 and weighs 7.5 grams. It is
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Peter Suchy .22 Carat Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Diamond wedding band ring. 12 round brilliant cut diamonds with 3 baguette cut spacer diamonds in a
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat
Located in Greensboro, NC
here. Featuring natural diamonds, the ring is fashioned from 900 platinum, a precious metal prized for
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, 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

1940s Sapphire and 1.88 Carat Diamond Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive vintage 0.80 carat sapphire and 1.88 carat diamond, platinum cluster style dress ring
Category

Vintage 1940s Cluster Rings

Materials

Diamond, Sapphire, Platinum

Antique 1.24 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.24 carat diamond and platinum solitaire engagement ring; part of
Category

20th Century Unknown Solitaire Rings

Materials

Diamond, Platinum

2.49 Carat Diamond and Platinum Trilogy Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
platinum fineness marks (950 PLAT). This impressive 2.49 carat diamond trilogy ring is supplied with three
Category

21st Century and Contemporary Unknown Three-Stone Rings

Materials

Diamond, Platinum

Art Deco Diamond Ring .87ct H/SI1 Old Euro EGL Certified Original 1920's Plat
Located in Dearborn, MI
Genuine Original Art Deco Antique from the 1920's EGL Certified .87ct Diamond Ring Platinum
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 2.49 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Sapphire and diamond engagement ring. Natural GIA certified green blue cushion cut 2.49 carat
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Peter Suchy 1.73 Carat Ruby Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Designs, 3 row Diamond and Ruby wedding band ring. Set comfortably low to the finger
Category

2010s Wedding Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 2.02 Carat Diamond Engagement Ring
Located in New York, NY
diamond is accentuated by baguette and emerald cut diamond accents. The ring is stamped PLAT and weighs
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

GIA 2.66ct Natural Fancy Yellow RADIANT 3 Stone Diamond Engagement Platinum Ring
Located in New York, NY
A Superb ESTATE 3 STONE GIA NATURAL FANCY "Canary" Yellow Radiant cut SHY 3ctw Three Stone DIAMOND
Category

Early 2000s Modern Engagement 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

.60 Carat Diamond Blue Sapphire Platinum Dome Triangle Ring
Located in Stamford, CT
Vintage 1926 diamond and sapphire Platinum filigree dome engagement ring. Set with 8 bright single
Category

Early 20th Century Dome Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Art Deco .54 Carats Round Baguette Diamond Platinum Band Ring
Located in Stamford, CT
1940's Vintage late Art Deco diamond band ring. 12 full cut diamonds in four rows of three
Category

Early 20th Century Band 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

GIA Certified 7.40 Carat Oval Spinel Diamond Platinum Engagement Ring
Located in Stamford, CT
Mid-Century beautiful spinel and diamond engagement ring. GIA Certified oval dark blue spinel in
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Spinel, Platinum

Peter Suchy .60 Carat Sapphire Diamond Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Sapphire and diamond wedding band ring. This unique wave design has a gentle flow from stone to
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Peter Suchy GIA Certified 2.04 Carat Square Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Square cut diamond engagement ring. This GIA certified 2.04 carat square emerald cut center diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Peter Suchy .64 Carat Diamond Sapphire Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Simple channel set Sapphire and diamond wedding band ring. 4 square cut sapphires alternating with
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Dover Diamonds GIA Colombian Emerald Diamond 3-Stone Platinum Ring
By Dover Jewelry
Located in Miami, FL
This ellegant Emerald and Diamond Cocktail Engagement ring was inspired in a traditional 3 stone
Category

21st Century and Contemporary American Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Platinum

1930s Antique 0.95 Carat Diamond Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
mark (10% IRID PLAT). This 0.95 carat diamond engagement ring is supplied with an IDGL diamond grading
Category

Vintage 1930s Unknown Art Deco Solitaire Rings

Materials

Diamond, Platinum

1.03 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
high quality sparkling round cut diamond accents. The ring is stamped PLAT and weighs 2.4 grams. It is
Category

20th Century Edwardian Engagement 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

Peter Suchy 4.05 Carat 5 Diamond Engraved Platinum Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
5 diamond wedding band ring. Platinum handmade and hand engraved ring. The ring is set with 5
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

GIA 3.75CT Estate Vintage Emerald Diamond 3 Stone Engagement Wed Pl, 18KYG Ring
Located in New York, NY
Engagement Ring. All the Step cut Diamonds are Masterfully set into Platinum Bezel setting. The center
Category

Early 2000s Modern Engagement Rings

Materials

Diamond, 18k Gold, Platinum

Mid-Century 1.58 Carats Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
Ring centers a round brilliant cut diamond weighing 1.36 carats total - J in color with VVS1
Category

Vintage 1950s Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage Platinum Art Deco .63 Carat Diamond Ring
Located in Boston, MA
Vintage platinum Art Deco diamond ring with diamond crescents accents. The center round diamond
Category

Vintage 1930s American Art Deco Engagement Rings

Materials

Diamond, Platinum

2.53 Carat Round Cut Baguette Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
.20cts, H, VS Size 5 and sizeable Platinum Stamped: Plat 4.46 grams 3/8 x 5/8 inch
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Oval Diamond GIA Certified 1.71 Ct. H VS1 Plat Setting with 0.35ct Pear Diamonds
Located in New York, NY
Beautiful oval diamond center stone ring. The GIA certified oval diamond weighs 1.71 carats , H
Category

Early 2000s American Modern Engagement Rings

Materials

Diamond, Platinum

Euro 1.50 Carat Alexandrite and Diamond Platinum Ring
Located in METAIRIE, LA
In an Art Deco Inspired Triple-Row Pave design, this Alexandrite & Diamond Ring features a square
Category

Early 2000s Engagement Rings

Materials

Alexandrite, Diamond, Platinum

Vintage 1.28 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 1.28 carat (total) diamond solitaire ring in platinum; part
Category

Vintage 1940s Solitaire Rings

Materials

Diamond, Platinum

1.15tcw PLAT Colombian Emerald-Round Cut & Diamond Tapered Baguette-Round Cut
Located in Jupiter, FL
tapered diamond baguettes and then two beautiful 3 pt diamonds that follow. The shank of the ring is
Category

2010s American Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

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3 Carat Diamond Plat Ring For Sale on 1stDibs

You are likely to find exactly the 3 carat diamond plat ring you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using platinum, gold and 18k gold. Our collection of these items for sale includes 524 vintage editions and 196 modern creations to choose from as well. You’re likely to find the perfect 3 carat diamond plat ring among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those produced as recently as the 21st Century. Creating a 3 carat diamond plat ring has been a part of the legacy of many jewelers, but those produced by Shreve, Crump & Low, Peter Suchy and Tiffany & Co. 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 old european cut and oval cut alternatives. Most of our 3 carat diamond plat ring for sale are for women, but there are 157 pieces available to browse for men.

How Much is a 3 Carat Diamond Plat Ring?

Prices for a 3 carat diamond plat ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $27 and can go as high as $1,825,000, while this accessory, on average, fetches $7,500.

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.