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3 Carat Diamond And Platinum Rings

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Peter Suchy 2.35 Carat Blue Sapphire Pear Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Sucy natural sapphire and diamond three stone engagement ring. 2.35 oval center sapphire
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Elegant Edwardian GIA Diamond 3 Stone 4 Carat Engagement Ring
Located in Santa Barbara, CA
Exemplifying the elegance of the Edwardian era, this magnificent, GIA Certified 3 stone diamond
Category

Antique Early 1900s Edwardian Dome Rings

Materials

Diamond, Platinum

1920s GIA Cert 1.28 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring from the 1920s, is centered with a sparkling GIA certified round
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

2.40 Carat Old European Cut Diamond Platinum Engagement Ring
Located in New York, NY
This elegant platinum ring centers a sparkling EGL certified old EUropean cut diamond that weighs
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA 1.55 Carat Fancy Yellow Radiant Diamond Engagement Wedding Platinum Ring
Located in New York, NY
weight of the side diamonds is 0.50CT. Entire Top Outline Measures 9x9mm. HUGE- a 3 carat Look and feel
Category

Early 2000s Engagement Rings

Materials

White Diamond, Yellow Diamond, Platinum

1.06 Carat Old European Cut Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum ring centers a sparkling GIA certified diamond that weighs 1.06ct. and is
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

3 Carat Emerald Flower Ring with White Diamonds
Located in Bucharest, Romania
This exquisite designer ring features a vibrant 3-carat natural emerald as its centerpiece
Category

2010s Artisan Cocktail Rings

Materials

White Diamond, Emerald

Exceptional 3-row Platinum Diamond Eternity Band
Located in San Francisco, CA
ring weighing approximately 3.30 total carats. The natural diamonds average G-H/VS2-SI1 and delivery
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Platinum

1.85 Carat Emerald Cut Diamond Solitaire Engagement Ring in Platinum
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive contemporary 1.85 carat emerald cut diamond solitaire ring in
Category

Early 2000s Unknown Engagement Rings

Materials

Diamond, Platinum

Platinum Art Deco Diamond Ring 0.40ct
Located in Laguna Beach, CA
Ladies art deco platinum and diamond ring. Tests platinum and weighs 3 grams. The diamond is an old
Category

Early 20th Century Cocktail Rings

Materials

Diamond, Platinum

1.78 Carat Old European Cut and Marquis Shape Diamond Platinum Art Deco Ring
Located in New York, NY
Title: 1.78 Carat Old European Cut I VS1 and Marquis Shape Diamond Platinum Art Deco Ring Style
Category

20th Century Art Deco Wedding Rings

Materials

Diamond, Platinum

3.50 Carat Old European Cut and Marquis Shape Diamond Platinum Art Deco Ring
Located in New York, NY
Title: 3.50 Carat Old European Cut K VS2 and Marquis Shape K VS Diamond Platinum Art Deco Ring
Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

Graff 3.54 Carat Round Brilliant Diamond Platinum Three-Stone Ring
By Graff
Located in New York, NY
-Stone Ring Style: Three-Stone Metal: Platinum Gemstone 1: 1.01 Carat Diamond Number of Stones: 1
Category

20th Century Wedding 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

EGL Certified .40 Carat Diamond Old European Cut Platinum Engagement Ring
Located in Stamford, CT
1920's Art Deco Diamond Old European Mixed Cut Platinum Engagement Ring set in platinum. EGL
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

2.71 Carat Old European Cut and Emerald Cut Diamond Platinum Art Deco Ring
Located in New York, NY
Diamond Platinum Art Deco Ring Style: Art Deco Metal: Platinum Gemstone 1: 2.37 Carat Diamond Number of
Category

20th Century Art Deco Wedding Rings

Materials

Diamond, Platinum

Vintage Platinum Diamond and Emerald Cluster Ring Engagement Ring.
Located in San Francisco, CA
package! Crafted in Platinum, the cluster is made up of 3 Square Cut Natural Emeralds, 0.21ct, of fine
Category

Vintage 1960s American Retro Cluster Rings

Materials

Diamond, Emerald, Platinum

Tiffany Co 1.09 Carat Round Brilliant Diamond Platinum Engagement Ring
Located in New York, NY
Engagement Ring Style: Engagement Metal: Platinum Gemstone 1: 1.09 Carat Diamond Number of Stones: 1 Color: H
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

3.25 Carat Tsavorite Garnet Diamond Platinum Wavy Wide Band Ring
Located in Miami, FL
Natural tsavorite garnet and diamond cocktail ring in platinum featuring 3.25 carats of oval
Category

1990s Modern Cocktail Rings

Materials

Diamond, Garnet, Platinum

5.43 Carat Colombian Emerald Diamond Platinum Ring, GIA Certified
Located in Beverly Hills, CA
platinum in a classic 3-stone design allowing the emerald’s natural beauty to showcase. Ring Size 6.75
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 3 Carat Fancy Intense Pink Purple Diamond Heart Engagement Ring
Located in Chicago, IL
GIA Certified 3.17 Carat Fancy Intense Pink Purple Diamond Heart Engagement Ring This
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Pink Diamond, Platinum

GIA Certified 1.80 Carat Edwardian Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 3 Metal Type: Platinum [Hallmarked, and Tested] Weight: 6.3 grams Center Diamond
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

Diamond, Platinum

French Ruby Diamonds 18 Karat Yellow Gold Platinum 3 Band Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark and platinum. Magnificent, this ruby-diamond ring
Category

21st Century and Contemporary French Napoleon III Engagement Rings

Materials

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

1950s, French Diamond and Platinum Full Eternity Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage French 0.75 carat diamond and platinum full eternity ring; part of
Category

Vintage 1950s French Engagement Rings

Materials

Diamond, Platinum

GIA Certified 2.65 Carat Cabochon Omphacite Jade Diamond Halo Platinum Ring
Located in Stamford, CT
of 14 round cut diamonds accented with 3 tapered baguettes on each side in a platinum setting. GIA
Category

Mid-20th Century Fashion Rings

Materials

Diamond, Jade, Platinum

3.90 Carat Emerald Cut Diamond 18 Karat Yellow Gold and Platinum Engagement Ring
Located in Santa Monica, CA
A romantic solitaire engagement ring with a 3.90 carat emerald cut diamond from the fine jewelry
Category

2010s American Modern Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

French 1950s Gaucherand 5.10 Carat Diamond Gold Platinum Ring
Located in Poitiers, FR
antique ring, it is set with claws on its top with 3 antique brilliant- cut diamonds surrounded by 2 x 5
Category

Vintage 1950s French Art Deco Cocktail Rings

Materials

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

Tiffany Co 1.09 Carat Round Brilliant Diamond Platinum Engagement Ring
Located in New York, NY
Engagement Ring Style: Engagement Metal: Platinum Gemstone 1: 1.09 Carat Diamond Number of Stones: 1
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

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

2010s American Three-Stone Rings

Materials

Emerald, Platinum

GIA CEYLON Blue Sapphire Old Minor 3 CT Diamond Cocktail Ring Platinum Estate
Located in New York, NY
Approximately 2.5 Carat Ceylon Blue Sapphire GIA CERTIFIED & Diamond Platinum Cocktail Ring 2.5
Category

Vintage 1930s Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Emerald and Diamond 18 Carat White Gold and Platinum Ring
Located in Chipping Campden, GB
stones are set in platinum. Ring Size: P or 7 3/4 Height Off Finger: 5mm Face Dimensions: 9x10mm Weight
Category

Vintage 1910s British Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Gold, Platinum, White Gold

Art Deco Ring Platinum Hand Made Natural Green Sapphire 1.08 carat and Diamond
Located in MADRID, ES
Beautiful handmade ring in 950 platinum, art deco style with central natural green sapphire of 1.08
Category

21st Century and Contemporary Spanish Contemporary Cluster Rings

Materials

Diamond, Green Sapphire, Platinum

Diamond Platinum Band Ring
Located in Beverly Hills, CA
in platinum. The ring showcases 9 channel-set princess-cut diamonds, totaling an impressive 3 carats
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Platinum

Aquamarine Diamond Platinum Ring
Located in Beverly Hills, CA
A fine aquamarine weighing 10.96 carats takes center stage of this platinum made ring. The aqua has
Category

21st Century and Contemporary Fashion Rings

Materials

Aquamarine, Diamond, Platinum

Harry Winston Platinum Sapphire and Diamond Ring
By Harry Winston
Located in Zurich, CH
Stunning sapphire and diamond ring by Harry Winston. Discover the epitome of elegance with this
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

22.41 Carat Cushion Brilliant and Tapered Baguette Platinum Engagement Ring
Located in New York, NY
Engagement Ring Style: Engagement Metal: Platinum Gemstone 1: 20.07 Carat Diamond Number of Stones: 1 Color
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Scarselli Platinum ring with DeBeers GIA Certified 5 Carat Marquise Diamond
By DeBeers
Located in New York, NY
Exquisite style and wearability come with this platinum Diamond ring, presenting a 5-carat white
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Platinum

3 Carat Round Brilliant Diamond Solitaire Engagement Ring, GIA Certified
Located in New York, NY
Spectacular engagement ring crafted in Platinum, showcasing a GIA certified round brilliant cut
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Platinum target Ring with blue Sapphires and Diamonds
Located in Aventura, FL
This elegant platinum target ring features a captivating center old mine-cut diamond of
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Richard Krementz Gemstones Tanzanite Diamond Platinum 18K Gold 3 stone Ring RKG
By Estate Jewelry
Located in Brambleton, US
Richard Krementz Gemstones Tanzanite Diamond Platinum 18K Gold 3 stone Ring RKG 1866 This
Category

Vintage 1970s Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, Platinum, 18k Gold

Art Deco GIA 1.60 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This amazing platinum engagement ring from the Art Deco era is centered with a sparkling GIA
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat
Located in Greensboro, NC
Surprise the love of your life with her dream ring! Crafted in heirloom-quality 900 platinum, this
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Antique Edwardian Platinum 6.12ctw GIA Old European Large Diamond 3 Stone Ring
Located in Montclair, NJ
You are looking at a breathtaking and truly jaw dropping antique diamond three stone ring that was
Category

Vintage 1910s Edwardian Band Rings

Materials

Diamond, Platinum

GIA .97 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 .0 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

3.29 Carat Oval Blue Sapphire Diamond in Platinum Engagement Ring
Located in Miami, FL
A platinum engagement ring featuring a 3.29-carat oval cut dark blue sapphire, flanked by round cut
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Retro 14k/Platinum Opal and Diamond Halo Ring
Located in Narberth, PA
An exquisite opal and diamond ring from the Retro (ca1940) era! This breathtaking ring is made of
Category

Vintage 1950s Engagement Rings

Materials

Gold, 14k Gold, Yellow Gold, Platinum

Contemporary GIA 3.19 Carat Round Brilliant Diamond Platinum Pave Ring
Located in Beverly Hills, CA
: 5 3/4 and can be resized Gram weight: 6.13 This stunning contemporary platinum pave ring from the
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1910s Diamond and White Gold Platinum Set Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.04 carat diamond and 18 karat white gold, platinum set cocktail
Category

Antique Early 1900s French Cocktail Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

GIA 5.04 Carat Oval Yellow Intense Diamonds 18 Karat and Platinum 950 Ring
By FERRUCCI
Located in New York, NY
platinum, and approximately 3.6 carat white Oval diamonds, G color, VS clarity , hand set for a maximum
Category

2010s American Contemporary Bridal Rings

Materials

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

Retro Platinum Diamond Engagement RIng .90ct
Located in Narberth, PA
An exquisite diamond engagement ring from the Retro (ca1940s) era! Crafted in platinum, this ring
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, Platinum

Platinum Baguette Diamond GIA Certified 11.01 Carat Australian Black Opal Ring
Located in Los Angeles, CA
Opal Baguette Diamond Engagement Ring Handmade in 90% Platinum. The Opal is truly out of this world
Category

21st Century and Contemporary American Art Deco Cocktail Rings

Materials

Diamond, Opal, Black Opal, Platinum

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

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Platinum

Diamond Engagement Platinum Ring
Located in Beverly Hills, CA
craftsmanship, set in elegant platinum. The centerpiece is a stunning 2.14-carat old European cut diamond, prong
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Antique 0.93 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
by dazzling round cut diamond accents. The top of the ring measures 12mm by 16mm. It is currently
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

Madagascan Sapphire and Diamond Ring in Platinum - Antique
Located in Jesmond, Newcastle Upon Tyne
carat diamond, platinum ring; part of our sapphire engagement rings collection. This stunning, fine and
Category

Vintage 1930s Unknown Engagement Rings

Materials

Diamond, Sapphire, Platinum

Shreve, Crump Low 16.95 Carat Pink Sapphire Sapphire and Diamond Platinum Ring
By Shreve, Crump Low
Located in Boston, MA
This sapphire and diamond 3-stone ring is offered by Shreve, Crump & Low. This oval cut pink
Category

2010s American Three-Stone Rings

Materials

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

1950s Diamond and Yellow Gold Platinum Set Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage 0.86 carat diamond and 14 karat yellow gold, platinum set vintage
Category

Vintage 1950s Unknown Cluster Rings

Materials

Diamond, 14k Gold, Platinum, Yellow Gold

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3 Carat Diamond And Platinum Rings For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of 3 carat diamond and platinum rings. These distinct designs — crafted with great care and often made from Platinum, Gold and 18k Gold — can elevate any look. Find a collection of 5275 vintage versions or 2941 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 17th Century to those produced as recently as the 21st Century. The designs in our inventory of 3 carat diamond and platinum rings bearing Modern or Art Deco hallmarks are very popular. There have been many well-made iterations of these items over the years, but those made by LB Exclusive, David Gross Group and Tiffany Co. are often thought to be among the most beautiful. There are many round cut, oval cut and emerald cut 3 carat diamond and platinum rings for sale. When shopping our range of 3 carat diamond and platinum rings, you’ll find that there are less available pieces for men today than there are for women.

How Much are 3 Carat Diamond And Platinum Rings?

Prices for 3 carat diamond and platinum rings can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $360 and can go as high as $2,699,999, while 3 carat diamond and platinum rings, on average, fetch $5,093.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And 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

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

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.