Skip to main content

3 Carat Platinum Ring

to
112
618
125
100
65
18
599
124
63
70
62
6
9
140
476
2
4
29
16
2
13
5
1
6
10
1
453
176
2
125
88
79
74
45
to
32
24
19
14
14
141
121
77
13
6
4
3
3
628
3
582
40
Sort By
2 Carat Fancy Intense Yellow Diamond 3 Stones Engagement Ring GIA Cert. Platinum
Located in New York, NY
shank. This exquisite ring has a total carat weight of 3.05 carats and is set in polished platinum and
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, Rose Gold, Platinum

GRS Certified 3 Carat UNHEATED RUBY Diamond Cocktail Ring
Located in Chicago, IL
Exquisite platinum ring featuring an oval unheated ruby weighing approximately 3.00 carats
Category

2010s American Engagement Rings

Materials

Diamond, Ruby, Platinum

Platinum Lauren French Pave Eternity Ring 1/3 Ct. tw
Located in San Francisco, CA
This stunning ring features French pave diamonds, a setting style that allows light to reach our
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Mia French Pave Diamond Eternity Ring 3 Ct. Tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this eternity ring features perfectly
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Voyage French Pave Diamond Ring 3/4 Ct. Tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Voyage French Pave Diamond Ring 1/3 Ct. tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum GIA French Pave Diamond Ring 3/4 Ct. tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum GIA French Pave Diamond Ring 1/3 Ct. Tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Viola Eternity Micro-Prong Diamond Ring 3 Ct. tw
Located in San Francisco, CA
From our signature Micro-Prong wedding band collection, this Eternity ring features perfectly
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Ethel Micro-Prong Diamond Ring 3/4 Ct. Tw
Located in San Francisco, CA
This ring features 13 perfectly matched round brilliant diamonds micro-prong set. Experience the
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Soph Delicate Bezel Diamond Ring 1/3 Ct. Tw
Located in San Francisco, CA
This delicate ring features five (5) round brilliant diamonds thinly bezel set on top of a 2mm wide
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Petite Micro-Prong Diamond Ring 1/3 Ct. tw
Located in San Francisco, CA
From our signature Micro-Prong wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Valerie Micro-Prong Diamond Ring 3/4 Ct. tw
Located in San Francisco, CA
From our signature Micro-Prong wedding band collection, this ring features perfectly matched round
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Petite Yamit Milgrain Diamond Ring 1/3 Ct. tw
Located in San Francisco, CA
This petite ring features five ( 5) floating Round brilliant diamonds in a marquise shape metal. A
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

5.87 Carat Grade A Jadeite Jade and Diamond Platinum 3 Stone Ring
Located in Miami, FL
Ring in Platinum Ring. The Jade is certified Hong Kong Jade & Stone Lab as a Fei Cui type A Jade
Category

21st Century and Contemporary Art Deco Three-Stone Rings

Materials

Diamond, Jade, Platinum

Princess Cut Diamond Eternity Band (Approx. 3-Carats), Platinum
Located in New York, NY
This exquisite eternity band features an elegant channel setting with approximately 3-carats of
Category

21st Century and Contemporary Unknown Art Deco Band Rings

Materials

Diamond, Platinum

Tiffany Co Lucida Cut Diamond 2.50 Carat Platinum Eternity Ring Size 5 3/4
By Tiffany Co.
Located in Los Angeles, CA
Tiffany & Co Lucida-cut Diamond 2.50 carats platinum eternity ring size 5 ¾. * ABOUT THIS ITEM
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, 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

GIA 4.29ct Emerald Cut Trapezoids 3 Stone Diamond Engagement Platinum Ring
Located in New York, NY
Impressive GIA 4.29ctw Emerald Cut Trilogy Diamond Engagement Anniversary Platinum Ring This
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.01ct Oval Solitaire Cluster 3-Stone Platinum Diamond Ring
By EMD Diamonds
Located in New York, NY
Institute of America) Shape: Oval Carat: 1.01 Color: J Clarity: SI2 Cut/Pol/Sym: -/EX/VG Ring Details
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

1.0 Carat Diamond and 950 Platinum Three-Stone Diamond Eternity Ring 3
Located in GB
diamond ring in a four claw platinum 950 setting A very good looking ring with bright clear diamonds
Category

21st Century and Contemporary English Modern Three-Stone Rings

Materials

Diamond, Platinum

Vintage 2.09 carat yellow diamond platinum 18k yellow gold 3 stone ring
Located in Beverly Hills, CA
Accent stone: 2 oval cut diamonds Weight: 1.07 carats Color: H-I Clarity: SI Metal: Platinum and 18k
Category

20th Century Three-Stone Rings

Materials

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

GIA 3.47ct Asscher Cut Diamond 3 Stone Engagement Wedding Platinum Ring
Located in New York, NY
Timeless Estate GIA 3.47ct Asscher Cut Diamond Engagement Anniversary 3 Stone Platinum Ring. This
Category

Early 2000s Engagement Rings

Materials

Diamond, Platinum

3.15 Carat Pear Shape Fancy Yellow Diamond 3 Stone Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense pear-shaped fancy yellow diamond weighing 3.15 carats
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Yellow Diamond, Platinum

Certified 5.76 Carat Cushion Cut Sapphire Diamond 3 Stone Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense Certified Cushion Cut Ceylon Blue Sapphire weighing 5.76
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified 3 Ct. Emerald Cut Diamond Platinum Ring FLAWLESS CLARITY
Located in Chicago, IL
A refined statement of elegance and strength, this exquisite GIA-certified 3-carat diamond ring is
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

3 Carat Radiant Yellow Diamond Engagement Ring
By Rare Colors
Located in New York, NY
This refined three-stone ring centers a 3.03-carat Fancy Light Yellow elongated radiant-cut diamond
Category

2010s American Modern Engagement Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold, Platinum

4 Carat Paraiba Tourmaline Oval and Cadillac Diamond 3 Stone Ring in Platinum
By Kothari
Located in Los Angeles, CA
stones. Handmade in platinum. Ring size 6.5.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Tourmaline, Paraiba, Platinum

3.02 Carat Marquise Shape Ruby and Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich, intense, brilliant Marquise Shape Ruby weighing 3.02 carats
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Ruby, Platinum

4.95 Carat Round Cut Emerald and Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich, intense, brilliant round cut Emerald weighing 4.95 carats
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Platinum Delicate Nianna Marquise Round Diamond Ring 1/3 Ct. tw
Located in San Francisco, CA
This delicate ring features alternating round brilliant and marquise cut diamonds in 0.35-carat
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

1.60ct Unheated Purple Sapphire Cushion Platinum 3-Stone Ring AGL - Merkaba
By Merkaba
Located in Beverly Hills, CA
Accent diamonds: Round brilliant diamonds, 0.19 carat total Metal: Platinum Ring size: 6 (complimentary
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Multi-gemstone, Sapphire, Purple Sapphire, Platinum

GIA Certified 3 Carat Square Emerald Cut Diamond Engagement Ring
Located in Chicago, IL
This elegant Cecile Blake design features a stunning GIA Certified 3 Carat Square Emerald Cut
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Vintage Platinum Old European Cut Diamond Three 3-Stone Anniversary Ring
Located in Chicago, IL
Vintage Platinum Old European Cut Diamond Three 3-Stone Anniversary / Engagement Ring. The ring
Category

Vintage 1950s American Art Deco Engagement Rings

Materials

Diamond, Platinum

Platinum Mia French Pave Diamond Eternity Ring 3/4 Ct. tw
Located in San Francisco, CA
From our signature French-Pave wedding band collection, this eternity ring features perfectly
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

GRS Certified 3 Ct. VIVID RED Untreated Ruby Diamond Platinum Ring
Located in Chicago, IL
Set with a cushion-shaped sapphire weighing 3 carats, within a frame of marquise-shaped diamonds
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Platinum Viola Eternity Micro-Prong Diamond Ring 3/4 Ct. Tw
Located in San Francisco, CA
From our signature Micro-Prong wedding band collection, this Eternity ring features perfectly
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum 3 row Diamond Eternity Band
Located in New York, NY
diamond band. It is stunning and a classic. Platinum Diamond: 3 ct twd (estimated) Ring Size: 5.25 Total
Category

21st Century and Contemporary More Rings

Materials

Diamond, Platinum

Art Deco 3 Carat Old Mine Cut Double Diamond and Platinum Ring Circa 1930 s
By H H Jewels
Located in Miami, FL
surrounded by 20 round-cut diamonds and 12 fancy square-cut blue sapphires Ring Details: ✔ Metal: Platinum
Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Diamond, Platinum

Bespoke Halo Mount for 3-5 Carat Yellow White Diamond Oval Shape Platinum Ring
By Hasbani Diamonds
Located in London, GB
This Spectacular Bespoke mount is suitable for a 3 - 5 Carat center diamond with 0.93 Carat of
Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Pink Diamond, Eme...

Art Deco Diamond Ring, 900 Platinum Old Mine Cut 5 3/4 Genuine .71 Carat
Located in Greensboro, NC
here. Featuring natural diamonds, the ring is fashioned from 900 platinum, a precious metal prized for
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.41 Carat Emerald Cut Sapphire Diamond 3 Stone Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense GIA Certified Emerald Cut Ceylon Blue Sapphire weighing
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Certified 5.23 Carat Emerald Cut Emerald Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense Certified Emerald Cut Zambian Emerald weighing 5.23
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Emerald, Platinum

3.28 Carat Round Cut Ruby and Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense brilliant round cut Ruby weighing 3.28 carats surrounded
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 4.07 Carat Emerald Cut Emerald Diamond 3 Stone Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense GIA Certified Emerald Cut Zambian Emerald weighing 4.78
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Certified 4.07 Carat Emerald Cut Sapphire Diamond 3 Stone Halo Ring in Platinum
Located in NEW YORK, NY
A stunning ring showcasing a rich intense Certified Emerald Cut Sri Lankan Blue Sapphire weighing
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Platinum 3 Stone Ring 1.86 carat Emerald with GIA Report and Diamonds size 6.75
Located in Big Bend, WI
Platinum 3 stone ring with a natural emerald cut emerald and two asscher cut diamonds. The genuine
Category

Late 20th Century Contemporary Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Certified 3.01 Carat Marquise Cut Burma Ruby Diamond 3 Stone Halo Ring Platinum
Located in NEW YORK, NY
carats total. Made in platinum.
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Ruby, Platinum

18 Carat Gold with Platinum Mounts 3 Stones Diamond Ring One-Stone Swaped
Located in GB
Wimbledon - Furniture are delighted to offer for sale this lovely vintage 18ct gold with platinum
Category

20th Century English Modern Three-Stone Rings

Materials

Diamond, Gold, Platinum

Vintage GIA 2.55ctw Antique Cushion Cut Diamond 3 Stone Engagement Platinum Ring
Located in New York, NY
Timeless GIA 2.55ctw Antique Cushion Cut Diamond Trilogy Vintage Engagement Platinum Ring This
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

GIA 12.63ct Fancy Yellow Radiant Diamond 3-Stone Platinum Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
Platinum with 18k Yellow gold accent 3 Stone Ring with 2 Trapezoid Cut diamonds on the side (1.31 Ct). The
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

5.56 Carat Oval Cut Purple Sapphire Diamond 3-Stone Engagement Ring in Platinum
Located in NEW YORK, NY
brilliant cut trapezoid diamonds weighing 0.60 carats total. Elegantly set in a polished platinum
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Purple Sapphire, Platinum

Certified 3.54 Carat Cushion Cut Blue Sapphire Diamond 3-Stone Ring in Platinum
Located in NEW YORK, NY
brilliant cut shield diamonds weighing 0.72 carats total. Elegantly set in a polished platinum composition.
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified 3 Carat D Color Old Mine Diamond Engagement Ring
Located in Chicago, IL
Showcasing a remarkable GIA Certified 3 carat Old Mine Brilliant diamond, this refined engagement
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

3 Carat Eternity Band Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Introducing our bespoke, made-to-order masterpiece—a ring crafted to perfection with your
Category

2010s Italian Modern Engagement Rings

Materials

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

GIA Certified Art Deco Authentic 3 Carat Diamond Cocktail Ring
Located in Chicago, IL
a stunning 3.02 carat old transitional cut diamond at its center. Crafted in solid platinum, the
Category

Vintage 1940s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

3 Carat Fancy Yellow Cushion Diamond Engagement Ring
By Rare Colors
Located in New York, NY
This elegant 3-carat Fancy Yellow three-stone engagement ring is a timeless symbol of love and
Category

2010s Three-Stone Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

  • 1
  • ...
Get Updated with New Arrivals
Save "3 Carat Platinum Ring", and we’ll notify you when there are new listings in this category.

3 Carat Platinum Ring For Sale on 1stDibs

Find the exact 3 carat platinum ring you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. You can easily find a 16020 antique edition and 14603 modern creations to choose from as well. If you’re looking for a 3 carat platinum ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. There have been many well-made iterations of the classic 3 carat platinum ring over the years, but those made by Tiffany Co., LB Exclusive and Antinori Fine Jewels are often thought to be among the most beautiful. A round cut version of this piece has appeal, but there are also emerald cut and old european cut versions for sale. When shopping for a 3 carat platinum ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 3 Carat Platinum Ring?

The price for a 3 carat platinum ring starts at $1 and tops out at $475,940,000 with these rings, on average, selling for $10,511.

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.