Skip to main content

Platinum Diamond Ring Triangle

1
to
16
196
53
146
102
65
49
41
34
19
16
6
6
5
4
4
3
3
3
2
2
1
8
7
4
3
3
Sort By
Platinum 2.03ct E/VVS2 Square Modified Diamond Ring & 1.60ct Triangle Diamonds
Located in London, GB
Platinum 2.03ct E colour VVS2 clarity square modified GIA natural diamond 3-stone ring set with 2
Category

2010s British Solitaire 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

Ruby and Diamond Triangle Ring
Located in Idar-Oberstein, DE
A stunning ruby and diamond ring in platinum. The round shaped ruby has a very bright pinkish
Category

20th Century Engagement Rings

Materials

Diamond, Ruby, Platinum

Platinum Vintage Engagement Ring Triangle Diamond Cabochon Burma Ruby 4.10 Carat
Located in New York, NY
timeless elegance and symbolizes enduring romance. Flanking the ruby are two enchanting triangle diamonds
Category

Early 2000s American Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

New Platinum Gubelin 5.63ct Triangle Cabochon Sapphire Pear Diamond 3 Stone Ring
Located in Montclair, NJ
This uniquely designed and very well made three-stone ring is newly crafted in solid platinum and
Category

2010s American Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 7.89 Carat Oval Green Emerald Triangle Diamond Platinum & 18k Ring
Located in San Francisco, CA
This classic Platinum and 18k Yellow Gold ring features a 7.89 Carat Oval-shaped Vibrant Bright
Category

21st Century and Contemporary American Three-Stone Rings

Materials

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

Platinum setting for 1-1.3 carat diamond w/ emerald & triangle cut diamonds
Located in Surfside, FL
Platinum setting for 1 - 1.3 carat diamond w/ emerald & triangle cut accent diamonds. Ring size 5
Category

20th Century Engagement Rings

Materials

Platinum

GIA Certified 6.01 Carat Yellow Diamond and Triangle Statement Ring
By GEMME
Located in New York, NY
A ultra unique Yellow Diamond Ring. Cushion Cut Diamond weighing 6.01 Carats with GIA certificate
Category

2010s American Engagement Rings

Materials

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

Diamond Engagement Ring Made of Platinum and Diamonds
By Jewels By Viggi
Located in Palm Beach, FL
Diamond Engagement ring made of Platinum, set in the center with Princess cut Diamond, weight 1.10
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 7.43 Carat Fancy Light Yellow Diamond and Triangle Engagement Ring
By GEMME
Located in New York, NY
Cut flanked by 2 Triangle Diamonds weighing 0.82 Carats. Set in Platinum and 18 Karat Yellow Gold.
Category

2010s American Engagement Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold, Platinum

Ring with pearl and diamonds 900 platinum
Located in The Hague, ZH
900 Platinum ring set with pearl and brilliant cut diamond. 1.41ct F/G - VS/SI - ring size 5.5
Category

2010s French Modern Fashion Rings

Materials

Diamond, Pearl, Platinum

Art Deco Teardrop Diamond Platinum Engagement Ring
Located in Berlin, DE
), framed by 2 triangle diamond weighing 1,5 ct. Mounted in platinum. Marked with PLATINUM. Total weight
Category

Mid-20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

French Square Platinum Art Deco Ring with Diamonds
Located in Amsterdam, NL
A platinum ring set with four old cut diamonds in a square each set in a mille griffe border with
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Platinum 10 Carat Aquamarine and Diamond Cocktail Ring
Located in Wailea, HI
Platinum 10 Carat Aquamarine and Diamond Cocktail Ring Introducing the exquisite Lady's Platinum
Category

Late 20th Century Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

French Art Deco Platinum and Diamond Square Ring
Located in Amsterdam, NL
A platinum ring set with four old-cut diamonds in a square. Each stone is mille-griffe set; and on
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

White Diamond, Platinum

Platinum 1.28 carat GIA Natural Alexandrite and Diamond Ring
Located in Big Bend, WI
Platinum 3 stone ring featuring an oval natural alexandrite weighing 1.28 carats and diamonds. GIA
Category

2010s Engagement Rings

Materials

Alexandrite, Diamond, Platinum

1.00 Carat Total Weight Diamond Platinum Cocktail Ring
Located in Atlanta, GA
Ring Size: 5.5 Metal Type: Platinum Weight: 5.2 grams Center Diamond Details Shape: Old European
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

White Diamond, Sapphire, Platinum

0.85ct Diamond Art Deco Carved Platinum Engagement Ring
Located in London, GB
Deco engagement ring is a true work of art. The ring showcases a platinum mount beautifully centred
Category

Vintage 1950s North American Art Deco Engagement Rings

Materials

Diamond, Platinum

Vintage 1930s 2.00 Carat Diamond Platinum Art Deco Ring
Located in Boston, MA
Vintage 1930s Diamond Platinum Art Deco Ring - The center diamond weighs approximately 2.00ct with
Category

Vintage 1930s American Art Deco Engagement Rings

Materials

Diamond, Platinum

GRS Certified 4.82ct Cushion Cut Blue Sapphire and Triangle Cut Diamond Ring
Located in Hong Kong, HK
Blue, Sri Lanka 2 Triangle Cut Diamonds: Carat total weight 1.02 Diamond quality: D-F color, VS
Category

2010s Hong Kong Modern Engagement Rings

Materials

Diamond, Blue Sapphire, White Gold, 18k Gold

Platinum Ruby and Diamond Ring with Baguette Cut Rubies and Round Diamonds
Located in Fairfield, CT
This platinum ring masterfully showcases a 0.9 carat round diamond, encased by 16 baguette cut
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Platinum Boulder Opal and Diamond Ring with 18K Accent
Located in Addison, TX
Behold the exquisite elegance of the Platinum Boulder Opal and Diamond Ring, a mesmerizing piece
Category

20th Century Engagement Rings

Materials

White Diamond, Opal, Gold, 18k Gold, Platinum

.80 Carat Diamond Sapphire Pierced Dome Platinum Engagement Ring
Located in Stamford, CT
diamonds and 2 French cut blue accent triangle sapphires in a Platinum pierced dome setting. 10 Old
Category

Early 20th Century Dome Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Art Deco 3.17 Carats Asscher Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
approximately 0.25 carat - eye clean and white Tested as platinum Circa: 1930s Ring Size: 7 1/2 & sizable
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Diana M. Platinum and Sapphire Diamond Ring 9.85cts
By Diana M. Jewels
Located in New York, NY
Platinum sapphire and diamond ring featuring a 9.85 ct EC AGI certified Sri Lanka natural Ceylon
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 3.43ct Burma No Heat Blue Sapphire Diamonds Ring Platinum
Located in New York, NY
diamonds: G-color, Vs-2 clarity. Platinum 6 grams. Depth: 6.4mm current ring size: 6.5 May be
Category

2010s American Solitaire Rings

Materials

Diamond, Blue Sapphire, Platinum

1930s Antique 2.49 Carat Diamond and Platinum Cocktail Ring Art Deco
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique Art Deco 2.49 carat diamond and platinum cocktail ring
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

Art Deco 19 Carat Blue Topaz 24 Diamond Platinum Cocktail Ring Statement Ring
Located in New York, NY
ROUND, EMERALD AND FANCY TRIANGLE CUT DIAMONDS SET IN A STUNNING DESIGN IN PLATINUM. THE MAGNIFICENT
Category

Early 20th Century Unknown Art Deco Cocktail Rings

Materials

Topaz, Blue Topaz, Diamond, Platinum

GIA 13.15ct Radiant Cut Fancy Intense Yellow Diamond Engagement Ring, Platinum
Located in New York, NY
diamond with VS1 clarity, set in yellow gold prongs and complemented by two substantial triangle-shaped
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Yellow Diamond, Diamond, Yellow Gold, Gold, Platinum

Peter Suchy GIA Certified 2.00 Carat Brown Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Natural 2.00ct Asscher cut diamond yellow brown color engagement ring, in a platinum setting
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Brown Diamond, Platinum

Mid-Century 1.45 CTW European Cut Diamond Platinum Vintage Engagement Ring GIA
Located in Philadelphia, PA
grooved prongs in a pierced triangle motif basket Flanked by single cut diamonds prong set at shoulders
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Platinum

Harry Winston Diamond Platinum Ring 4.03 Carat Emerald Cut E/VS1 GIA
By Harry Winston
Located in Beverly Hills, CA
quality diamond! The ring is made of platinum and features a superb 4.03-carat emerald cut diamond flanked
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, White Diamond, Platinum

18K Yellow Gold & Platinum 0.40ct Diamond Cluster Retro Ring, c1960's
Located in MELBOURNE, AU
ring is crafted in 18K yellow gold & platinum (top) with a solid flat shank measuring 5.5mm (stamped
Category

Vintage 1960s Australian Retro Cluster Rings

Materials

Diamond, Yellow Gold, Platinum, 18k Gold

Antique Art Deco Platinum GIA European Diamond Sapphire Filigree Engagement Ring
Located in Montclair, NJ
This truly gorgeous and classic art deco period engagement ring is crafted in solid platinum and
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Platinum Rubellite Tourmaline Ring
Located in San Diego, CA
This is a very regal Rubellite Tourmaline ring set with 3 Top Gem Quality Rubellite Tourmalines of
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Rubelite, Tourmaline, Platinum

Hartzberg & Co. 1930 Art Deco Band Ring In Platinum With VS Diamonds
Located in Miami, FL
An art deco ring with diamonds designed by J L Hartzberg & Co.. Beautiful band ring created during
Category

Vintage 1930s American Art Deco Band Rings

Materials

Diamond, White Diamond, Platinum

Art Deco 0.60 Carat Old European Cut Diamond Platinum Vintage Engagement Ring
Located in Philadelphia, PA
- accented by faceted engraving and pierced triangle profile. Stamped for platinum. With maker's mark for
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA 1.10ct Antique Cushion Cut Diamond Engagement Ring, G Color, Halo, Platinum
Located in New York, NY
sparkling halo, and two graceful triangles adorn the ring's shoulders. Crafted in platinum, the ring's under
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Nova 18 Karat Yellow Gold and Platinum 2.75 Carat Diamond Baguette Ring
Located in New York, NY
6 sizing options are available The ring has a round Diamond set in a triangle on the outer shank
Category

1990s American Modern Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

.75 Carat Old European Diamond Sapphire Art Deco Platinum Dome Engagement Ring
Located in Stamford, CT
Art Deco 1920's Diamond and sapphire engagement ring. 3 center diamonds with 4 triangle cut and
Category

Vintage 1920s Dome Rings

Materials

Sapphire, Blue Sapphire, Diamond, Platinum

RUCHI 3.37 Carat Blue Sapphire & Trillion Cut Diamond Platinum Ring
By Ruchi New York
Located in New York, NY
Cushion blue Sapphire center stone with triangle shape diamonds ring set in Platinum. Ring size
Category

2010s Hong Kong Contemporary Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified No Heat Burma Ruby 1.63 Carat Diamond 0.90 Carat Platinum Ring
By OGI Ltd
Located in New York, NY
, Diamond weighing 0.90 carat, Platinum Ring, finger size 6, a true treasure that embodies elegance, rarity
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, Ruby, Platinum

Antique Art Deco Platinum GIA Old European Diamond Engagement Ring & Band Set Ba
Located in Montclair, NJ
This absolutely gorgeous antique ring is crafted in solid platinum and features incredible filigree
Category

Vintage 1920s Art Deco Bridal Rings

Materials

Diamond, Sapphire, Platinum

Nova 18KT Gold and Platinum 2.59 Carat Princess and Baguette Cut Diamond Ring
Located in New York, NY
princess cut and baguette cut diamonds. The two different diamond cuts , set in platinum,are very brilliant
Category

1990s American Contemporary Band Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

GIA 2.25 Carat Sapphire Diamond Fleur de Lis Gold Platinum Cocktail Ring
Located in Stamford, CT
1900's Sapphire and diamond Fleur de Lis cocktail ring. Platinum top and 18k rose gold setting. 5
Category

Early 20th Century Victorian Cocktail Rings

Materials

Ruby, Sapphire, Diamond, Platinum, Rose Gold, 18k Gold, Gold

Platinum GIA Natural 1.03 carat Padparadscha Sapphire Ring
Located in Big Bend, WI
pair of antique triangle diamonds weighing .51cts total and measuring about 4mm. The ring fits a size
Category

2010s Engagement Rings

Materials

Sapphire, Padparadscha Sapphire , Platinum

Platinum 0.55 carats of Emerald - cut Emerald ring
Located in Braintree, GB
Platinum 0.55 carats of Emerald - cut Emerald ring, set with two round brilliant diamonds and
Category

21st Century and Contemporary European Band Rings

Materials

Emerald, Platinum

Art Deco 3 Carat Diamond and Ruby Tablet or Plaque Ring in Platinum, Circa 1925
Located in Sherman Oaks, CA
This tablet (aka shield) ring is quintessential Art Deco: the strong geometric pattern with open
Category

Early 20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Scott Keating Platinum Sapphire and Diamond "View Points" Band
Located in Kirkwood, MO
channel set in a triangle in the corners of the ring. There is a total diamond weight of 0.08 carats
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Sapphire, Platinum

Platinum 0.63 carats of Emerald - cut Blue Sapphire ring
Located in Braintree, GB
Platinum 0.63 carats of Emerald - cut Blue Sapphire ring, set with two round brilliant diamonds
Category

21st Century and Contemporary European Band Rings

Materials

Emerald, Blue Sapphire, Platinum

Diana M. Platinum engagement ring featuring a center (J-VS2) 18.03 radiant cut
By Diana M. Jewels
Located in New York, NY
Platinum engagement ring featuring a center (J-VS2) 18.03 ct radiant cut diamond with 2.75 cts tw
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 5.02 Carat Radiant Yellow Diamond Ring
By GEMME
Located in New York, NY
Centered upon a 5.02 Carat Radiant Cut Cut flanked by Triangle Shaped Diamonds and surrounded by
Category

2010s Engagement Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold, Platinum

GIA Certified 8.25 Carat Oval Sapphire and Diamond Ring
By GEMME
Located in New York, NY
Centered upon a Oval Shaped Sapphire weighing 8.25 Carats and flanked by Triangle Diamonds
Category

2010s American Engagement Rings

Materials

Diamond, Sapphire, Platinum

Vintage Aquamarine and Diamond Toi et Moi Two Stone Ring
Located in Santa Barbara, CA
. Boasting a vivid, triangle Aquamarine kissing a sizzling colorless diamond, together set in platinum
Category

Early 2000s Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Platinum

Authentic Art Deco Diamond Emerald 3 Stone Engagement Ring
Located in Santa Barbara, CA
A unique Art Deco diamond and emerald three stone engagement ring. Centered by a captivatingly
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

Vintage Art Deco Diamond Sapphire and Coral Cocktail Ring
Located in Santa Barbara, CA
coral trapezoids floating in a platinum halo, accented by diamond kissed milgrain settings complimented
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

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

Auction - GIA Certified 4.99 Carat Colombian Emerald and 2.01 Carat Diamond Ring
By GEMME
Located in New York, NY
Beautiful Colombian Emerald weighing 4.99 Carats. Flanked by Triangle Diamonds weighing 0.76 Carats
Category

2010s Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 6.01 Carat Fancy Yellow Cushion Cut Diamond Ring
By GEMME
Located in New York, NY
elongated Cushion flanked by 2 Triangle Diamonds weighing 0.79 Carats. Set in Platinum and 18 Karat Yellow
Category

2010s American Engagement Rings

Materials

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

Magnificent Fancy Yellow 7.49 Carat Cushion Cut Diamond Engagement Ring
Located in Palm Beach, FL
Magnificent Platinum & 18K Yellow Gold Engagement Ring, set in the center with Fancy Yellow 7.49C
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 18k Gold, Platinum

1.29Ct Marquise Diamond GIA Certified Fancy Deep Brownish Orangy Yellow Ring
Located in San Diego, CA
This is a simple and beautiful ring featuring an exceptionally cut Marquise Shape Diamond that has
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Platinum

  • 1
Get Updated with New Arrivals
Save "Platinum Diamond Ring Triangle", and we’ll notify you when there are new listings in this category.

Platinum Diamond Ring Triangle For Sale on 1stDibs

You are likely to find exactly the platinum diamond ring triangle 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, 18k Gold and Gold. Find an antique version now, or shop for 11 vintage or 5 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a platinum diamond ring triangle from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. Creating a platinum diamond ring triangle has been a part of the legacy of many jewelers, but those produced by GEMME, Hancock & Co. and Le Vian are consistently popular. Take a look at a platinum diamond ring triangle featuring Diamond from our inventory today to add the perfect touch to your look. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes round cut and emerald cut alternatives. Finding a platinum diamond ring triangle for sale for women should be easy, but there are 5 pieces available to browse for unisex as well as men, too.

How Much is a Platinum Diamond Ring Triangle?

The price for a platinum diamond ring triangle starts at $980 and tops out at $240,000 with these rings, on average, selling for $16,180.

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.