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Platinum 3 Stone Diamond Engagement Rings

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Blue Nile 3-Stone Platinum Diamond Engagement Ring Cushion 1.96 Carat
By Blue NIle
Located in San Diego, CA
Blue Nile Diamond Engagement Ring Style: 3-Stone Past Present Future Serial Number: Report#645616 Metal: Platinum Size: 6 - sizable Total Carat Weight: 0.96 tcw Diamond Shape: ...
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Hancocks Elegant Emerald-Cut Diamond Three-Stone Platinum Ring
By Hancocks
Located in London, GB
A 0.72ct Emerald cut diamond FVVS1 with GIA certificate A 0.76ct Emerald cut diamond EVVS1 with GIA certificate A 1.04ct Emerald cut diamond FVS1 with GIA certificate Further 16 r...
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Purple Sapphire Engagement Ring 3-Stone Trinity Platinum Estate Gemstone Bridal
Located in Santa Barbara, CA
A passionately beautiful purple sapphire engagement ring in an elegant 3 stone setting. Taking center stage is a 3.23 carat captivating, brilliant and lively natural sapphire of a sh...
Category

Vintage 1980s Contemporary Three-Stone Rings

Materials

Purple Sapphire, Diamond, Sapphire, Platinum

Platinum 3-Stone Diamond Engagement Ring 1.50 Carat
Located in Laguna Hills, CA
Contemporary, Platinum diamond three stone ring is a traditional style and much desired engagement ring. The total weight of the ring is embossed on the interior of the ring shank of...
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Contemporary Platinum Three-Stone Diamond Engagement Ring
Located in Lexington, KY
This gorgeous three stone diamond engagement ring is in bright white platinum and has a gorgeous contemporary look! The three diamonds in this ring are set in a stepped design with a...
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Platinum

Three Stone Diamond Platinum Engagement Ring
Located in Napoli, Italy
An amazing hand crafted three stone engagement ring, set with a 1.36 carat baguette-cut F color diamond IF clarity, flanked by 0.70 carat trillion-cut diamonds G color VVS1 clarity. ...
Category

Vintage 1950s Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified 7 Carat Cushion Diamond Platinum 3-Stone Diamond Engagement Ring
By Five Star Jewelry
Located in Austin, TX
This ONE OF A KIND GIA certified 7.01 Carat CUSHION DIAMOND has traveled from Millions of miles under the Earth's surface to hundreds of thousands of miles around the globe to be set...
Category

21st Century and Contemporary Artisan Engagement Rings

Materials

Diamond, Platinum

Seven-Stone Diamond Engagement Ring in Platinum (GIA Certified)
By Concierge Diamonds Inc.
Located in Los Angeles, CA
This stunning custom engagement ring incorporates seven diamonds and an intricate setting in platinum. Using embellishments such as engraving, bezels and a knife edge, this ring is a...
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Three-Stone Sapphire Diamond Platinum Engagement Ring
Located in Miami, FL
This estate engagement ring designed in line with the vintage 1960's popular style of rings is crafted in solid platinum and weighs approx. 8.0 grams. In timelessly elegant and fas...
Category

Vintage 1980s Three-Stone Rings

Materials

Blue Sapphire, Diamond, Sapphire, White Diamond, Platinum

Three -Stone Radiant Cut Diamond Engagement Ring with Trapezoid Side Stones
By Concierge Diamonds Inc.
Located in Los Angeles, CA
This stunning three stone Radiant Cut Diamond Engagement Ring features a 3.01 carat center diamond and is flanked by two trapezoid cut diamonds nestled against two elongated baguette...
Category

2010s Romantic Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified 4.63 Carat Diamond Three-Stone Platinum Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Handmade platinum engagement ring boasting a jaw dropping 4.63ct GIA graded round brilliant cut diamond, G color, SI2 clarity with excellent polish and very good symmetry and cut gra...
Category

21st Century and Contemporary Modern Engagement Rings

Materials

White Diamond, Platinum

Edwardian Three-Stone Diamond Filigree Platinum Engagement Ring
Located in New York, NY
Vintage three stone engagement ring featuring 3 round cut diamonds weighing a total of approximately 3.80 carats with each stone ranging in H-I color, VS clarity.
Category

Vintage 1910s Art Deco Three-Stone Rings

Materials

Diamond, Platinum

Platinum Flower Engagement Ring GIA Certified Centre Stone
By Concierge Diamonds Inc.
Located in Los Angeles, CA
This platinum flower engagement ring is inspired by nature and features a princess cut diamond in the center.  Crafted in Platinum, this flower ring contains a Princess cut Diamond (...
Category

2010s Art Deco Engagement Rings

Materials

Diamond, Platinum

Princess Cut Diamond Engagement Ring with Custom Gallery, Trillion Side Stones
By Concierge Diamonds Inc.
Located in Los Angeles, CA
One of the best parts about creating a custom diamond engagement ring is being able to really personalize every single detail! Take for instance this stunning custom engagement ring ...
Category

2010s Modern Three-Stone Rings

Materials

Diamond, Platinum

5-Stone Diamond and Platinum Engagement Ring
Located in New York, NY
This engagement ring features 3 emerald cut diamonds weighing 1.37 carats and 2 baguette cut diamonds weighing 0.16 carats graded H-I, SI1 100% eye clean. Size 6.5. Made in Italy. ...
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum Three-Stone .50 Carat Round Diamond Engagement Ring
Located in Baltimore, MD
Platinum Three Stone .50 Carat Round Diamond Ring Size 7.25 Metal: Platinum Weight: 3.02 grams Diamonds: 3 round diamonds, approx. .50 CTW G VS Band is 1.7mm Size: 7.25 (US)
Category

Mid-20th Century Three-Stone Rings

Materials

Diamond, Platinum

GIA Burma Ruby Diamond Platinum Three-Stone Engagement Ring
Located in Miami, FL
Witness the Delicate touch of color and sparkle on this Engagement Ring! This elegant Three Stone Style piece is Crafted in Solid Platinum, weights 5.6 grams and the top measures  ...
Category

21st Century and Contemporary Artist Three-Stone Rings

Materials

Diamond, Ruby, Platinum

1.47 Carat Diamond Platinum Three-Stone Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 1.47 carat diamond (total) and contemporary platinum ring; part of our diverse diamond jewelry and estate jewelry collections This impressive diamond t...
Category

Vintage 1910s Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Three-Stone Emerald Cut Diamond Engagement Ring in Platinum
By MOGULDIAM INC
Located in New York, NY
Three stone Emerald Cut Diamond ring beautifully handcrafted in platinum. The details are as follows : Diamond weight : 2.38 carat ( 3 emerald cut diamonds) H color and VS clarity ...
Category

2010s Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Kashmir Sapphire No Heat Diamond Platinum 3-Stone Engagement Ring
By Dover Jewelry
Located in Miami, FL
Rare Sapphire! All Natural No Heat Sapphire from Kashmir region GIA certified. This very rare sapphire ring was inspired in a 3 stone motif and crafted in luxurious Platinum. Featur...
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Emerald Diamond Engagement Platinum Ring Three-Stone Pear Shape
Located in Brunswick, ME
Antique 1940's fine pear shape Colombian emerald and diamond three-stone engagement ring. Platinum setting with diamond Baguettes. One pear Colombian emerald, medium green color, ve...
Category

Vintage 1940s Art Deco Three-Stone Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Platinum Blue Sapphire Diamond Three-Stone Trilogy Engagement Ring
Located in Newcastle Upon Tyne, GB
A magnificent blue sapphire and diamond three-stone engagement ring, meticulously well-crafted and exquisitely beautiful Diamond: 1.60 carats Diamond Colour: H Diamond Clarity: VS...
Category

Early 2000s Modern Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

1.12 Carat Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
Three princess cut diamond engagement ring in a three stone platinum setting. crt 1 Center diamond 1.12cts F, SI1, 2 Princess cut diamonds Approx. .40cts total F, VS2 to SI1 Platin...
Category

1990s Modern Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified Cushion Shaped Diamond 3-Stone Platinum Engagement Ring
By Manfredi
Located in Greenwich, CT
This 3 stone Diamond Engagement Ring features a GIA certified Cushion shaped Diamond at the center, weighing 2.01 carat, G color, SI1 clarity. The diamonds at each side are 0.48 cara...
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

Platinum 3 Stones Round Diamond Engagement Ring
By Manfredi
Located in Greenwich, CT
This classic three stone engagement ring features an amazing GIA Certified 2.00 carats Round Brilliant cut Diamond at the center and is flanked by 2 shimmering round diamonds on each...
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Platinum

Chromium Green Tourmaline 18ct white gold White Diamond 3-Stone Engagement Ring
By PureBrilliant Diamonds
Located in Glasgow, Glasgow
A bespoke ring comprising a rectangular scissor cut Chromium Green Tourmaline. Set in an 18ctwhite gold mount with 2 supporting diamonds weighing 0.36cts each I colour SI Clarity. Th...
Category

2010s Modern Three-Stone Rings

Materials

Tourmaline, Platinum

  • Chromium Green Tourmaline 18ct white gold White Diamond 3-Stone Engagement Ring
  • Chromium Green Tourmaline 18ct white gold White Diamond 3-Stone Engagement Ring
  • Chromium Green Tourmaline 18ct white gold White Diamond 3-Stone Engagement Ring
  • Chromium Green Tourmaline 18ct white gold White Diamond 3-Stone Engagement Ring
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H 0.81 in. W 0.4 in. D 0.26 in. L 0.69 in.
Platinum Est. 1.25 Carat Diamond 3-Stone Trinity Engagement Ring
Located in Lancashire, Oldham
A modern three stone bar set platinum diamond ring, comprising of 3 graduated brilliant cut diamonds totalling an estimated 1.25cts. The centre stone est. 0.55ct flanked by two stone...
Category

2010s Modern Three-Stone Rings

Materials

Diamond, Platinum

Three-Stone 0.96 Carat Center Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Three-stone 0.96 carat center diamond and platinum engagement ring. DETAILS: DIAMONDS: center diamond approximately 0.96 carat, approximately K color, VS clarity, side diamonds tota...
Category

Early 2000s Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Vintage Sapphire Diamond Three-Stone Platinum Engagement Ring
Located in Chicago, IL
Circa 1925 This Art Deco era vintage platinum engagement ring is centered with a high-dome cabochon cut 1.88 ct sapphire of an excellent velvety blue color. The sapphire is flanked ...
Category

Early 20th Century Art Deco Three-Stone Rings

Materials

Diamond, Blue Sapphire

Platinum Three-Stone Fancy Yellow Radiant Cut Diamond Engagement Ring
Located in New York, NY
Ladies beautiful platinum and 18kt yellow gold three stone diamond ring featuring a 2.01 carat Radiant-cut Fancy Yellow and (VS1) in clarity. Two trilliant cut diamonds are set on th...
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Platinum

0.75 Carat Oval Diamond Three-Stone Platinum Engagement Ring
Located in Scottsdale, AZ
Designer: custom design Material: platinum Center Stone: oval cut 0.75 carat diamond Color: H Clarity: SI1 Diamonds: two round brilliant cut diamonds = 0.50 carat weight Color: H Cla...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Platinum Marquise Diamond Three-Stone Engagement Ring
Located in Coral Gables, FL
Platinum Three Stone Diamond Ring Featuring A 1.10 Carat Marquise Cut Diamond GIA Graded (Report #6214393306) As E Color & VS2 Clarity. 2 Tapered Baguette Diamonds Accent The Center ...
Category

Vintage 1970s Engagement Rings

Materials

Diamond, Platinum

Classic Diamond Platinum Three Stone Engagement Ring
Located in New York, NY
A classic through the ages, this three stone ring can - and should - be worn all day, as the style is simple enough for morning coffee and elegant enough for evening sparkle. Three ...
Category

1990s Engagement Rings

Materials

Diamond, Platinum

Oval Ruby and Diamond Three-Stone Engagement Ring in Platinum
Located in Yorkshire, West Yorkshire
This timeless Ruby and Diamond three stone ring site beautifully on the finger with the 2.00ct Ruby in the centre showing a lovely deep red colour. With two modern brilliant cut Diam...
Category

Late 20th Century Three-Stone Rings

Materials

Diamond, Ruby, Platinum

  • Oval Ruby and Diamond Three-Stone Engagement Ring in Platinum
  • Oval Ruby and Diamond Three-Stone Engagement Ring in Platinum
  • Oval Ruby and Diamond Three-Stone Engagement Ring in Platinum
  • Oval Ruby and Diamond Three-Stone Engagement Ring in Platinum
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H 0.34 in. W 0.63 in. D 0.22 in.
Pink Sapphire 3-Stone Engagement Ring Oval Trinity Estate Diamond Platinum
Located in Santa Barbara, CA
A most elegant natural pink sapphire 3 stone engagement ring. The ever-popular trinity design centered by a vivid, intense bubble gum pink sapphire, the oval cut bursting with a a mo...
Category

1990s Neoclassical Three-Stone Rings

Materials

Diamond, Sapphire, Pink Sapphire, Platinum

3.90 Carat Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
3.90ct sapphire oval center stone with two trilliant cut side diamonds in a platinum three-stone setting. GIA certified sapphire, with simple heat only. 1 oval sapphire 3.90ct. to...
Category

Vintage 1930s Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

1940s, Platinum, Diamond Three-Stone Engagement Ring
Located in Rochford, Essex
Diamond trilogy ring, mid 20th century. This classic three-stone diamond ring is set with a substantial trio of early to mid-20th century circular-cut diamonds. With a centre stone w...
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

Edwardian Three-Stone Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Three-stone Edwardian Diamond Platinum Engagement Ring This wonderfully domed platinum diamond ring is lavishly decorated with fine open work, chased motifs and millegrain, in the...
Category

Vintage 1910s Edwardian Engagement Rings

Materials

Diamond, Platinum

Diamond Turquoise Two-Stone Platinum Engagement Ring
Located in Beverly Hills, CA
Creativity exposed through a symbiotic relationship of color and technical geometric design. Featuring a 0.97 carat triangular cut diamond that is K color, SI2 clarity that has been ...
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Turquoise, Platinum

Antique 5-Stone Diamond and Platinum Engagement Ring
Located in NEW ORLEANS, LA
A bright white old European diamond shines from the center of this unique fine-stone platinum engagement ring. Four round diamonds bezel set on the sides offer glittering accents. ...
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

1.46 Carat Fancy Yellow Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
Canary yellow diamond and white diamond engagement ring. GIA certified 1.46ct. yellow center diamonds in a three-stone platinum setting with 2 Trilliant cut side diamonds. Extra fin...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Yellow Diamond, Platinum

5.88 Carat Oval Diamond Three-Stone Platinum Engagement Ring Trillion Diamonds
By Five Star Jewelry
Located in Austin, TX
Three Stone Diamond Engagement Ring Metal Quality: Platinum Diamond: Oval Brilliant Cut Diamond Weight: 5.11 Carat Diamond Clarity: SI-2 clarity (eye clean!) Diamond Color: H (near...
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Platinum

1930s Three-Stone Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Vintage Three-Stone Diamond Ring, Circa 1930 Set in platinum with three old European-cut diamonds totaling approximately 0.60 carat, approximately H color and SI1 clarity, the shoul...
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique 3-Stone Diamond Engagement Ring 1 Carat Platinum Trinity Band Old Mine
Located in Santa Barbara, CA
This most enchanting antique 3 stone diamond engagement ring also known as a trinity or trilogy band is a sight to behold. Dating from the early 1900s Edwardian era, the crown settin...
Category

Antique Early 1900s Edwardian Three-Stone Rings

Materials

Diamond, Platinum

Estate Platinum Three-Stone Emerald Cut Diamond and Sapphire Engagement Ring
Located in Scottsdale, AZ
Estate platinum three stone emerald cut diamond and sapphire engagement ring. Centering one fine quality emerald cut blue sapphire weighing approximately 3.65 carats. Flanked by two ...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

3.86 Carat Old European Cut Diamond Platinum Engagement Ring
By Single Stone
Located in Dallas, TX
The drama of the Art Deco era comes to life in this newly created 1920's European cut diamond ring. The intricate platinum lattice crown work holding this old 3.86 ct European cut di...
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Vintage 1930s Platinum Blue Sapphire Diamond Three-Stone Trilogy Engagement Ring
Located in Newcastle Upon Tyne, GB
A traditional platinum basket-style setting with double-claws adorned with a central cushion-shaped inky-blue sapphire of approximately 1.00 carat, flanked on either side by a single...
Category

Vintage 1930s Art Deco Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

Peter Suchy GIA .85 Carat Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
GIA certified diamond engagement ring. GIA certified center round .85ct diamond in a platinum three-stone setting with two round brilliant cut diamonds. Created in the Peter Suchy Wo...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Platinum

Colombian Emerald and Diamonds Platinum, 18 Karat Three-Stone Engagement Ring
Located in Brunswick, ME
Fine Three Stone 18K Gold and Platinum Engagement Ring Center: Fine Natural Colombian Emerald .85 Carat Vivid Medium intense Green Side: two Natural princes Cut Diamonds 0.70 Carat...
Category

Early 2000s Contemporary Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Vintage Art Deco Three-Stone Old Mine Cut Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
Charming and authentic vintage Art Deco era (circa 1930) platinum three-stone diamond engagement ring. The ring features three old mine cut diamonds, each nestled inside a dramatic b...
Category

Vintage 1930s Art Deco Three-Stone Rings

Materials

Diamond, Platinum

Estate White Diamond 3 Stone Engagement Ring in Platinum
Located in Los Angeles, CA
Beautiful 3 stone ring with 0.75 ct. white diamond rounds, 3 stones in total. Platinum handmade mounting in size 7.
Category

21st Century and Contemporary Engagement Rings

Materials

White Diamond, Platinum

1.70 Carat Purple Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
GIA certified pear shape natural purple no heat no enhancement Sapphire and diamond engagement ring, with two side diamonds in a Platinum three-stone setting. 1950s. Purple Sapph...
Category

Mid-20th Century Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Antique Edwardian Platinum Diamond Two-Stone Engagement Ring
Located in Great Neck, NY
Stunning Edwardian 2-stone engagement ring in platinum with detailed filigree & engravings. The diamonds are sparkly & lively! Item #R0142 Metal: Platinum Weight: 4.6 Grams Cent...
Category

Vintage 1910s Edwardian Engagement Rings

Materials

Diamond, Platinum

Peter Suchy 1.96 Carat Diamond Halo Three-Stone Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy raised platinum three-stone diamond engagement ring with triple halo top and raised micro pave sides. GIA certified center diamond 1.40 carat. I color VS clarity. Bright ...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Platinum

GIA Certified Three-Stone Diamond Platinum Engagement Ring
Located in New York, NY
Beautifully hand crafted platinum 3 stone diamond ring, set with 3 perfectly matched round brilliant cut diamonds.The center diamond weighing 1.55 carats is complimented by 2 side st...
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

2.25 Carat Emerald, Diamond, Platinum Yellow Gold 3-Stone Engagement Ring
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This classic 3-stone engagement ring features a beautiful 2.25 carat Zambian emerald set with fancy shaped trapezoid cut diamonds. The emerald has ideal bright green color, excellent...
Category

21st Century and Contemporary Artisan Three-Stone Rings

Materials

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

Peter Suchy 3.21 Sapphire Diamond Three-Stone Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Three-stone diamond and sapphire engagement ring. European cut diamond of exceptional color and sparkle. Exceptional brilliance, raised crown and small table. Large diameter setting....
Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Martin Flyer GIA 1.52 Carat Diamond Platinum Three-Stone Engagement Ring
By Martin Flyer
Located in Stamford, CT
Martin Flyer handmade Diamond engagement Platinum ring. GIA certified round ideal brilliant cut center stone with 2, round ideal brillaint cut side stones in a three-stone platinum s...
Category

Late 20th Century Three-Stone Rings

Materials

Diamond, Platinum

Ruby and Diamond Five-Stone Platinum Engagement Ring
Located in London, GB
This ruby and diamond five stone platinum engagement ring is the most elegant of engagement rings. Set with a central emerald cut ruby framed either side by a bright white emerald c...
Category

Vintage 1970s Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

  • Ruby and Diamond Five-Stone Platinum Engagement Ring
  • Ruby and Diamond Five-Stone Platinum Engagement Ring
  • Ruby and Diamond Five-Stone Platinum Engagement Ring
  • Ruby and Diamond Five-Stone Platinum Engagement Ring
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H 0.24 in. Dm 0.76 in.
Art Deco 3-Stone Diamond Platinum Engagement Ring Trinity Band Fleur De Lis
Located in Santa Barbara, CA
With a dainty fleur de lis crown, this fab, 3 stone Art Deco diamond engagement ring is an enduring classic. The sturdy platinum trinity or trilogy band as it is known, set with a tr...
Category

Vintage 1920s Art Deco Three-Stone Rings

Materials

Diamond, Platinum

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Platinum 3 Stone Diamond Engagement Rings For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of platinum 3 stone diamond engagement rings. Frequently made of Platinum, Gold and 18k Gold, these items were constructed with great care. Our selection of items includes 429 vintage examples as well as 470 contemporary versions. Our inventory has long been popular, and it includes earlier versions that date to the 19th Century and newer variations that were made as recently as the 21st Century. Pieces in our collection of platinum 3 stone diamond engagement rings made by Contemporary jewelers — as well as those associated with Modern — are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Roman Malakov, Peter Suchy and J. Birnbach are consistently popular. Today, if you’re looking for round cut platinum 3 stone diamond engagement rings and are unable to find the perfect match, our selection also includes emerald cut and old european cut alternatives. There aren’t many items for men in our collection of platinum 3 stone diamond engagement rings, as most of the options available are for women.

Finding the Right Engagement Rings for You

Shopping for the right engagement ring can prove daunting. Whether you’re looking for that perfect vintage engagement ring, an antique Edwardian period engagement ring or a fashionable contemporary alternative, it’s important to choose a style that speaks to you.

Rings have long been signifiers of marriage and committed relationships. The modern diamond engagement ring can be traced back to 1477, when Archduke Maximilian of Austria commissioned an expensive diamond ring for his betrothed. Diamond rings subsequently became extremely popular among the European aristocracy. Later, during the Victorian era, the popularity of diamond engagement rings had filtered down to the middle class, owing to the increasing accessibility — and affordability — of gold and diamonds. 

Victorian-era engagement rings were simple, frequently set in rose or yellow gold. The diamonds were five-set in a band or solitaire. In 1886, Tiffany debuted its innovative six-prong diamond solitaire engagement ring, while Cartier’s Solitaire 1895 engagement ring resembled delicate lace. Victorian-era engagement rings also saw other gemstones accompanying diamonds — small seed pearls and moonstones were popular. Other sentimental and romantic motifs such as hearts and stars took hold as well.

Edwardian and, afterward, Art Deco engagement rings that followed in the wake of Queen Victoria’s death in 1901 would be characterized by complex, geometric designs and platinum settings. Owing to the Art Nouveau movement, nature was a major theme for Edwardian jewelry, while the diamond ring designs of the Art Deco period were inspired by Cubism as well as ancient Egypt. Art Deco engagement rings are bold and colorful and feature gems cut in nontraditional ways. 

Engagement rings designed after World War II were intended to be simpler and focused on the beauty of the diamond. In 1947, De Beers Consolidated Mines, with the support of Philadelphia agency N.W. Ayer & Son, introduced the slogan “A diamond is forever” in a marketing campaign that emphasized a connection between diamonds and romance. Diamond sales skyrocketed, and diamond engagement rings became intertwined with the post–World War II marriage boom — which coincided with the ascension of specific diamond cuts. The round brilliant cut, which consists of an astounding 58 facets, continues to be the most popular cut to this day. Jewelers such as Harry Winston had already gained a reputation for his talents by the time the De Beers campaign debuted, and he is said to have favored emerald-cut diamonds. 

For everything from understanding the 4Cs to choosing between antique, vintage, contemporary and custom styles, get expert tips to help you find just the right ring — see our engagement ring buying guide.

When you're ready to mark your momentous occasion, find a vast collection of engagement rings on 1stDibs.