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25 Carat Platinum Ring

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.25 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

25 Carat Aquamarine Ring in Platinum
Located in Houston, TX
25.13 carat step-cut aquamarine ring in a simple basket mounting done in platinum. The ring
Category

Mid-20th Century Unknown Cocktail Rings

Materials

Aquamarine, Platinum

.25 Carat Diamond Platinum 1940's Band Ring
Located in Stamford, CT
Vintage 1940's pieced scroll design .25 carat diamond platinum band ring. 22 round brilliant cut
Category

Mid-20th Century Band Rings

Materials

Diamond, Platinum

25 Carat Star Sapphire Diamond Platinum Ring
Located in New York, NY
Platinum cocktail ring, with approx. 25-30ct star sapphire cabochon, surrounded with approx
Category

20th Century More Rings

Materials

Star Sapphire, Diamond, Platinum

25 Carat Star Sapphire Cabochon Platinum Diamond Ring
Located in New York, NY
Platinum cocktail ring, featuring center 25-30cts star sapphire cabochon , measuring 20.6 x 14.7 x
Category

20th Century More Rings

Materials

Diamond, Star Sapphire, Platinum

.25 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.25 Carat Total Weight Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.1 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Peter Suchy .25 Carat Diamond Platinum Eternity Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
platinum setting. The diamonds are set in marquise shaped sections separated by grooved sections. This ring
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 8.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 1.6 grams Center Diamond
Category

Vintage 1930s Unknown Art Deco Wedding Rings

Materials

Diamond, Platinum

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 3 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

.25 Carat Total Weight Platinum Wedding Band
Located in Atlanta, GA
Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.9grams Diamond Details: Weight
Category

Vintage 1920s Unknown Art Deco Band Rings

Materials

Platinum

.25 Carat Total Weight Diamond Platinum and White Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 4.25 Metal Type: Platinum & 14 karat White Gold Weight: 3.5 grams Center Diamond
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Sapphire, Blue Sapphire, White Gold, Platinum

Tiffany & Co .25 Carat Baguette Diamond Platinum Band
By Tiffany & Co.
Located in Atlanta, GA
: Baguettes Color: G Clarity: VS Carat: .25 carat total weight (5 stone count) The rings if rom the 1980s
Category

Vintage 1980s Unknown Retro Band Rings

Materials

Diamond, Platinum

GIA Certified 25 Carat Blue Sapphire & Round Diamond Halo Ring in Platinum
Located in Miami, FL
round brilliant cut colorless diamonds. Gemstones are stationed on a platinum cathedral ring setting
Category

1990s Sri Lankan Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Platinum Belle Diamond Ring '1/5 Carat'
Located in San Francisco, CA
This ring features micro-prong - set round brilliant diamonds that form a chevron-shaped band
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

1.71 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.90 Metal Type: Platinum Weight: 4.7 grams Center Diamond Details Shape: Rose Cut
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

3.11 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 4.75 Metal Type: Platinum Weight: 3.8 grams Center Diamond Details
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

1.11 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 7 Metal Type: Platinum Weight: 3.4 grams Center Diamond Details Shape
Category

Vintage 1920s Unknown Art Deco Wedding Rings

Materials

White Diamond, Platinum

1.05 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 8 Metal Type: Platinum Weight: 4.0 grams Center Diamond Details: Shape
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.50 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: Platinum Weight:4.0 grams Center Diamond Details Shape: Old European
Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.10 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 3 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.75 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4 Metal Type: Platinum Weight: 4.4 grams 1st and 2nd Center Diamond Details Shape: Old
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Emerald, Platinum

1.00 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 4 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams Center
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

Peter Suchy 1.13 Carat Diamond Platinum Eternity Band Ring
By Peter Suchy
Located in Stamford, CT
1.13 carat, 25 round diamond in a custom groove set diamond platinum eternity setting from the
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

2.48 Carat Certified Untreated Ruby Engagement Solitaire Ring Platinum
Located in US
platinum settings. Currently a US size 6:25 and easily adjustable. Total Ring Weight: 4.50g Included AIGS
Category

Early 2000s Unknown Contemporary Solitaire Rings

Materials

Ruby, Platinum

Art Deco 1.10 Carat Diamond Platinum Ring
Located in beverly hills, CA
approximately 1.10 carats in a refined diamond and platinum mounting with all the finely engraved and milgrained
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum Emerald Eternity Diamond Ring '4 1/2 Carat'
Located in San Francisco, CA
of 4.50 carat set in a shared prongs ring Product details: Center Gemstone Color: WHITE Side
Category

21st Century and Contemporary American Band Rings

Materials

Emerald, Diamond, Platinum

.25 Carat Natural Round Cut Diamonds Men's Band Platinum Mod Square Form
Located in New York, NY
. Platinum 15.7 grams. Ring is 4.3mm wide 2mm thick (skin to top) current ring size: 9.5 We may
Category

2010s American Band Rings

Materials

Diamond, Platinum

7.39 carat Tanzanite, Aquamarine Amethyst and Diamond Ring in Platinum
Located in La Jolla, CA
set in High Polished Platinum setting. Diamond weight is .25 carats Ring size is 6.75 Total weight
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Amethyst, Aquamarine, Diamond, Tanzanite, Platinum

Navette Platinum 3.75 Carat Round Cut Diamond Ring
Located in New York, NY
Navette Platinum 3.75 Carat Round Cut Diamond Ring Set with 25 old-European cut diamonds. L: 32mm
Category

20th Century American Modern Fashion Rings

Materials

Diamond, Platinum

1.25 Carat Art Deco Pearl Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: . grams Center Details
Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

Pearl, Platinum

GIA Certified 1.17 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: Platinum Weight: 5.3 grams Center Diamond Details GIA CERTIFIED Center
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.00 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 8.95 Metal Type: Platinum [Tested & Hallmarked] Weight: 3.7 grams Center Stone Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.27 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.00 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.16 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 7.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.2 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.25 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.2 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Aquamarine Diamond Cocktail Ring in 25 Carat Aqua
Located in Kendal, GB
calming clear blue hue with flashes of green, weighing an impressive 25 carats (approx.) Aquamarine
Category

20th Century Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Platinum

.85 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.7 grams
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

0.53 Carat Natural Diamond Ring Set in Platinum
Located in Tokyo, JP
A gorgeous Engagement/Fashion Ring featuring a 0.53 Carat, Natural Diamond as well as 0.05 Carats
Category

21st Century and Contemporary Japanese Modern Engagement Rings

Materials

Diamond, Platinum

Peter Suchy 3.39 Carat Green Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
approximate .30 carats 2 straight cut diamond baguette G VS approximate .25 carats Size 6 and sizable Platinum
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Green Sapphire, Platinum

1.21 GIA Certified Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified .89 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.9 grams Center Diamond
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.67 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.64 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.8 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.01 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 5.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.68 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4 grams Center Diamond
Category

Antique Early 1900s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.39 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

New Sapphire Solitaire Engagement Ring, 950 Platinum Round Cut .53 Carat
Located in Greensboro, NC
for your bride-to-be! This 950 platinum ring is fashioned in a classic Tiffany-style design graced by
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Sapphire, Platinum

GIA Certified 1.01 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 8.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 1.17 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 1.61 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 6.5 Metal Type: Platinum [Tested & Hallmarked] Weight: 3.8 grams Center
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Sapphire, Blue Sapphire, Platinum

1.38 Carat Natural Colombian Emerald Diamond Gold Platinum Engagement Ring
Located in Stamford, CT
sizeable 18k yellow gold Platinum Tested: 18k and Platinum Stamped: Plat Hallmark: 0706 25 6.1 grams Width
Category

21st Century and Contemporary Engagement Rings

Materials

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

Art Deco Inspired Platinum 2.18 Carat Aquamarine & Diamond Ring
Located in Cape May, NJ
Era: Art Deco Inspired Composition: Platinum Primary Stone: Aquamarine Carat Weight
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

1930s Art Deco .92 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 8.25 Metal Type: Platinum Weight: 4.2 grams Center Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

0.34 Carat Natural Dancing Diamond Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring featuring a 0.34 Carat Natural Diamond and 0.23 Carats Diamond accents Ring set in
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Platinum

GIA Certified 23 Carat Jadeite Jade +4.5ct Diamond Cocktail Ring Platinum Estate
Located in New York, NY
GIA Certified approximately 23to 25 Carat Jadeite Jade +4.5Ct Diamond Cocktail Ring Platinum Estate
Category

1990s Cocktail Rings

Materials

Diamond, Jade, Platinum

0.87 Carat Diamond and Platinum Ring - Art Deco Style
Located in Jesmond, Newcastle Upon Tyne
A stunning antique and contemporary 0.87 carat diamond and platinum Art Deco style ring; part of
Category

Vintage 1910s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

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25 Carat Platinum Ring For Sale on 1stDibs

Find the exact 25 carat platinum 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. Our collection of these items for sale includes 2883 vintage editions and 2317 modern creations to choose from as well. You’re likely to find the perfect 25 carat platinum 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. There have been many well-made iterations of the classic 25 carat platinum ring over the years, but those made by Tiffany & Co., Roman Malakov and Cartier are often thought to be among the most beautiful. 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 oval cut and old european cut alternatives. If you’re browsing our inventory for a 25 carat platinum ring, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 25 Carat Platinum Ring?

The price for a 25 carat platinum ring starts at $142 and tops out at $2,925,000 with these rings, on average, selling for $6,493.

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.