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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

GIA Certified 3 Carat Emerald Cut Diamond Platinum Ring Flawless Clarity D color
By Antinori Fine Jewels
Located in Rome, IT
beauty and modern craftsmanship. At the heart of this platinum ring sits a breathtaking 3 carat Emerald
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Internally Flawless Clarity GIA Certified 3 Carat Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
an eternally stylish design. The 3 carat emerald cut center diamond is bright white, completely loop
Category

2010s Unknown Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 3 Carat Old Mine Cut Diamond Solitaire Ring D FLAWLESS
By Antinori Fine Jewels
Located in Rome, IT
centerpiece of this ring is a mesmerizing old mine diamond, boasting an impressive 3 carats. The stone's
Category

2010s Italian Engagement Rings

Materials

Diamond, White Diamond, Platinum

3 Carat GIA Flawless Fancy Light Yellow Elongated Radiant Diamond Ring
Located in New York, NY
Symmetry and no fluorescence A diamond that will satisfy even the pickiest shopper Set in Platinum and 18k
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Diamond, Yellow Gold, Platinum

GIA Certified 3 Carat Internally Flawless Clarity Emerald Diamond with pavè
By Antinori Fine Jewels
Located in Rome, IT
diamond ring, boasting exceptional E color and internally flawless clarity grades. Certified by the
Category

2010s Unknown Contemporary Solitaire Rings

Materials

Diamond, Emerald, 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

GIA Certified 3 Carat Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
3 carat emerald cut diamond ring that will leave you utterly speechless. Prepare to be dazzled by
Category

2010s Italian Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA 5.06 Carat Moval Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One GIA 5.06 Carat Moval Cut Diamond Platinum Ring. Featuring one GIA moval cut diamond of 5.06
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Inspired 0.85 Carat Diamond Ruby Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 0.85 Carat Diamond Ruby Platinum Ring. Featuring one old European cut diamond
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Ruby, Platinum

IGI Antwerp Bypass Heart Shape Flawless Diamond and Ruby Ring
By Antinori Fine Jewels
Located in Rome, IT
An amazing bypass moi & toi platinum ring set with a 2 carat flawless heart shape diamond certified
Category

2010s Italian Modern Cluster Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Exceptional GIA Certified 3 Carat Heart Shape Diamond Solitaire Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite GIA certified 3 carat diamond with internally flawless clarity the highest grade of
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Euro 1.50 Carat Alexandrite and Diamond Platinum Ring
Located in METAIRIE, LA
rows of 7 – 3 rows on each side) Bead set Colorless Nearly Flawless Round Brilliant cut Accent Diamonds
Category

Early 2000s Engagement Rings

Materials

Alexandrite, Diamond, Platinum

GIA Certified 3.01 Carat Round Brilliant Cut Diamond Platinum Ring 3X
By Antinori Fine Jewels
Located in Rome, IT
diamonds in solid platinum 3 excellent cut F Color Internally Flawless Clarity Fluorescence: None a truly
Category

2010s Unknown Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco GIA 2.79 Carat Ceylon Sapphire Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco GIA 2.79 Carat Ceylon Sapphire Diamond Platinum Ring. Featuring one GIA oval mixed cut
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Blue Sapphire, Sapphire, Blue Diamond, White Diamond, 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

GIA Certified 8.71 Carat '0.50 Cts' Radiant Platinum Diamond Eternity Ring
By Sebastian Bernard
Located in Los Angeles, CA
9 are G Color 2 diamonds is IF (Internal Flawless) Clarity, 3 diamonds are VVS2 Clarity, 2 are VS1
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Art Deco Inspired 1.84 Carats Sapphire Diamond Platinum Cluster Ring
Located in Beverly Hills, CA
One Art Deco Inspired 1.84 Carats Sapphire Diamond Platinum Cluster Ring. Featuring one octagonal
Category

21st Century and Contemporary Art Deco Cluster Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

David Rosenberg 15.71 Carat Cushion GIA 3 Stone Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 15.71 carat Cushion cut I color SI2 clarity is accompanied by a GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Art Deco Inspired 1.60 Carats Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 1.60 Carats Platinum Ring. Featuring one old European diamond of 1.60 carats
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum Etoile Diamond Ring
By Tiffany & Co.
Located in New York, NY
Platinum Ring Size: 5.25 Diamond: 1.51 ct twd Color: D-G Clarity: Flawless -VS2 Width: 3 mm
Category

21st Century and Contemporary More Rings

Materials

Diamond, Platinum

Art Deco Inspired 1.53 Carats Transitional Cut Diamond Sapphire Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 1.53 Carats Transitional Cut Diamond Sapphire Platinum Ring. featuring one
Category

2010s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

3 Carat Pear Shape Diamond Engagement Ring GIA Certified G IF
Located in New York, NY
Malaya 3 Carat G Internally Flawless Pear Shape Diamond Engagement Ring in Platinum By Mike Nekta
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Fancy Yellow Cushion Cut Diamond Ring VS2 Clarity
By Antinori Fine Jewels
Located in Rome, IT
Certified natural 3-carat fancy yellow cushion-cut diamond ring. Exuding brilliance and sophistication, this
Category

2010s Italian Modern Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Platinum

Art Deco Inspired 2.40 Carats Cabochon Ruby Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 2.40 Carats Cabochon Ruby Diamond Platinum Ring. Featuring one ruby cabochon
Category

2010s Unknown Cluster Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 3 Carat Oval Diamond Ring MADE IN ITALY
By Antinori Fine Jewels
Located in Rome, IT
each diamond securely, its subtle artistry underpinning the ring's refined aesthetic. The platinum
Category

2010s Unknown Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Genuine Antique Deco Sapphire Diamond Ring 1.21ct Dated 3-14-1940 Platinum
Located in Dearborn, MI
Genuine Original Art Deco Antique Dated 3-14-1940 Vintage Sapphire Diamond Ring 1.21ct Round
Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

David Rosenberg 13.34 Carat Pear Shape GIA 3 Stone Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 13.34 carat Pear shape H color SI2 clarity is accompanied by a GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat Cushion Cut Diamond Engagement Ring GIA Certified FVP IF
Located in New York, NY
Featuring a gorgeous 2.05 carat cushion cut diamond, this fancy engagement ring is sure to catch
Category

2010s American Engagement Rings

Materials

Pink Diamond, Diamond, 18k Gold, Platinum

Mid-Century French Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
One Mid-Century French Diamond Platinum Cocktail Ring. Featuring seven round brilliant, three old
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Baguette Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco Baguette Cut Diamond Platinum Ring. Featuring 19 baguette cut diamonds with a total
Category

Vintage 1930s Art Deco Band Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Emerald Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco Emerald Cut Diamond Platinum Ring. Featuring one emerald cut diamond of approximately
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Platinum 4 carat Emerald Cut Sapphire Ring
Located in METAIRIE, LA
Colorless Nearly Flawless Rectangular Baguette cut Accent Diamonds ranking an E Color & VVS1-VVS2 Clarity
Category

Vintage 1970s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

David Rosenberg 7.09 Carat Heart Shape F VS2 GIA 3 Stone Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 7.09 carat Heart Shape F color VS2 clarity is accompanied by a GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Art Deco Platinum Ballerina Diamond GIA Certified 3.54 Carat Oval Ruby Ring
Located in Los Angeles, CA
Diamond Engagement Ring. Metal- 90% Platinum, 10% Iridium. 17.50 Grams. Ring Comes With GIA Certificate
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Ruby, Diamond, Platinum

Edwardian Inspired Diamond Platinum Toi et Moi Navette Ring
Located in Beverly Hills, CA
One Edwardian Inspired Diamond Platinum Toi et Moi Navette Ring. Featuring eight old European and
Category

21st Century and Contemporary Edwardian Cocktail Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Diamond Sapphire Platinum Bezel Set Ring
Located in Beverly Hills, CA
One Art Deco Diamond Sapphire Platinum Bezel Set Ring. Featuring one old European cut diamond
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Deco Platinum Filigree Euro Cut Diamond Ring
Located in Lexington, KY
, and against the lacelike background of the platinum ring, almost otherworldly. Between the diamonds
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Untreated Jadeite & Diamond 3 Stone Cocktail Ring
Located in Santa Barbara, CA
Untreated jadeite & diamond 3 stone cocktail ring. Shouldered with two trillion cut diamonds at
Category

Vintage 1980s Contemporary Three-Stone Rings

Materials

Diamond, Jade, Platinum

Art Deco Inspired 0.65 Carat Old Cut Diamond Sapphire Platinum Three Stone Ring
Located in Beverly Hills, CA
One Art Deco Inspired Old Cut Diamond Sapphire Platinum Three Stone Ring. Featuring one antique
Category

2010s Unknown Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Inspired Sapphire Diamond Platinum Square Cocktail Ring
Located in Beverly Hills, CA
One Art Deco Inspired Sapphire Diamond Platinum Square Cocktail Ring. Featuring four rectangular
Category

2010s American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

David Rosenberg 8.02 Carat Cushion Fancy Yellow VS1 GIA 3 Stone Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 8.02 carat Cushion Cut Fancy Yellow VS1 clarity is accompanied by a GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

GIA Diamond Emerald 18k Gold Platinum Two Tone Toi et Moi Ring
Located in Beverly Hills, CA
One GIA Diamond Emerald 18k Gold Platinum Two Tone Toi et Moi Ring. Featuring one GIA radiant cut
Category

21st Century and Contemporary Cocktail Rings

Materials

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

GIA Certified 5.01 Carat Emerald Cut Diamond Engagement Ring
By Bella Rosa Estate Jewelers
Located in Santa Barbara, CA
This luxurious diamond ring is a true masterpiece of high jewelry, featuring a stunning 5.01 carat
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Round Brilliant Cut Diamond Platinum Eternity Band
Located in Beverly Hills, CA
platinum. Circa 2023. The ring is a size 6 3/4. About this Item: Embrace the chicest sparkle with this
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

Midcentury Platinum Diamond Eternity Band
Located in METAIRIE, LA
. Containing a central row of Graduating Colorless Nearly Flawless Baguettes totaling 2.50 carats ranking an E
Category

Vintage 1960s Engagement Rings

Materials

Diamond, Platinum

3.49 Ct GIA Certified Round Diamond Round Halo Triple Pave Shank Platinum Ring
By FERRUCCI
Located in New York, NY
approximate total carat weight of 2.46 carats. Including the main center diamond, the ring has an approximate
Category

2010s American Art Nouveau Engagement Rings

Materials

Diamond, White Diamond, Platinum

3 Ct Fancy Light Yellow Radiant-Cut Diamond Engagement Ring GIA SCARSELLI VVS1
By SCARSELLI
Located in New York, NY
A 3-carat diamond engagement ring with a GIA-certified VVS1 fancy light yellow center stone
Category

2010s North American Contemporary Engagement Rings

Materials

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

GIA Certified 2 Carat E VS1 Pear Cut Diamond Solitaire Engagement Ring
Located in Santa Barbara, CA
The Santa Barbara near flawless 2 carat pear cut diamond solitaire engagement ring is GIA Certified
Category

Vintage 1960s Art Deco Engagement Rings

Materials

Diamond, Platinum

2.00 Carat Cornflower Blue Ceylon Sapphire/ 1.50cts. Diamonds/ 18K Plat Ring
Located in Birmingham, MI
, platinum was selected to fabricate the 5- pronged setting. Near flawless, E color diamonds in the princess
Category

21st Century and Contemporary Fashion Rings

Materials

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

Retro French Diamond Two Tone Ring
Located in Beverly Hills, CA
platinum with French hallmarks. Circa 1940. The ring is a size 5 3/4 and may be resized. About this Item
Category

Vintage 1940s Cocktail Rings

Materials

Diamond, White Diamond, Gold, Yellow Gold, Platinum

Van Cleef & Arpels Diamond Ring
By Van Cleef & Arpels
Located in New York, NY
Created by Van Cleef & Arpels, this 0.43 carat diamond solitaire ring is set in platinum. It weighs
Category

2010s Solitaire Rings

Materials

Diamond, Platinum

6 Carat Pear Shape Diamond Engagement Ring GIA Certified E IF
Located in New York, NY
. Ring: Metal: 18K White Gold Style: 3 Prong Pear Shape Diamond, micro Pave Shank Diamonds: 0.42 Carat
Category

2010s American Engagement Rings

Materials

Diamond, White Gold, 14k Gold, 18k Gold

3.00 Ct Exceptional GIA Certified Oval Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
3 Carat exquisite oval-shaped diamond ring that epitomizes timeless elegance and unparalleled
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

GIA Certified 3-Stone Ring with 11.18ct Fancy Light Yellow VVS2 Radiant Cut
By M&V Vanguard Jewelry
Located in New York, NY
3 stone ring in Platinum & 18K Yellow Gold Center: 11.18ct Natural Fancy Light Yellow Even VVS2
Category

2010s American Modern Three-Stone Rings

Materials

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

3.39 Carat GIA E /Internally Flawless Antique Marquise Diamond Ring
Located in San Francisco, CA
This superior and stunning, original Art Deco platinum and diamond engagement ring sizzles with an
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Graded 0.95 Carat Fancy Light Greenish-Blue Diamond Internally Flawless Ring
Located in Warrington, PA
carat Fancy Light Greenish-Blue Diamond Internally Flawless ring. The center stone displays a lovely
Category

Late 20th Century American Art Deco Engagement Rings

Materials

Diamond, White Diamond, Blue Diamond, Platinum

Rare Turquoise 2.80 Carat Old Diamond Platinum Gold Ring
Located in Napoli, IT
, set onto solid Platinum – Diamonds are rated as G to I colour VVS to I clarity grade -each chunky
Category

Antique Early 1900s Edwardian Cocktail Rings

Materials

Diamond, Turquoise, Gold, 18k Gold, Platinum

2.0 Carat Natural Ceylon Pink Sapphire 1.50 Carat G VVS Diamond Platinum
Located in Napoli, IT
ring, designed in a halo with rich Diamond set like a floret, all superbly hand crafted of solid
Category

Vintage 1930s Art Deco Cluster Rings

Materials

Diamond, Pink Sapphire, Platinum

Tiffany & Co. Etoile Collection Dazzling Diamond Set in Platinum Engagement Ring
By Tiffany & Co.
Located in Scottsdale, AZ
From the beautiful Etoile Collection, this beautiful platinum Tiffany & Co. diamond engagement ring
Category

20th Century American Engagement Rings

Materials

Diamond, White Diamond, Platinum

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Flawless 3 Carat Platinum Diamond Ring For Sale on 1stDibs

Surely you’ll find the exact flawless 3 carat platinum diamond ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. 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. You can easily find a 8 antique edition and 114 modern creations to choose from as well. Making the right choice when shopping for a flawless 3 carat platinum 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 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. A flawless 3 carat platinum diamond ring from Antinori Fine Jewels, J. Birnbach and Paul Spurgeon — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for an emerald cut version of this piece and are unable to find the perfect match, our selection also includes round cut and oval cut alternatives. When shopping for a flawless 3 carat platinum diamond ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Flawless 3 Carat Platinum Diamond Ring?

Prices for a flawless 3 carat platinum diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,125 and can go as high as $4,450,000, while this accessory, on average, fetches $135,000.

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 Bvlgari 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.