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18 K Platinum Ring

Antique Belle Époque Diamond Platinum 18 K Natural Oriental Pearl Bridal Ring
Antique Belle Époque Diamond Platinum 18 K Natural Oriental Pearl Bridal Ring

Antique Belle Époque Diamond Platinum 18 K Natural Oriental Pearl Bridal Ring

Located in Munich, Bavaria

This ring is made out of 18 karat yellow gold and platinum the ring head features ca natural oriental button pearl surrounded by lovely white diamonds, all set in platinum. The ring ...

Category

Antique Early 1900s English Bridal Rings

Materials

Diamond, Oriental Pearl, Platinum

18 K white Gold  VintagNatural Blue Sapphire and Diamond Platinum Cocktail Ring
18 K white Gold  VintagNatural Blue Sapphire and Diamond Platinum Cocktail Ring

18 K white Gold VintagNatural Blue Sapphire and Diamond Platinum Cocktail Ring

Located in Zurich, Zollstrasse

This wonderful Vintage 18 K white Gold Cocktail ring features a natural royal blue oval sapphire weighing ca. 1.02ct in a four claw, open back setting. The vibrant stone is beautiful...

Category

Vintage 1950s Unknown Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Old Mine Cut Diamond Engagement Ring In 18 K Gold and Platinum, GIA Certified.
Old Mine Cut Diamond Engagement Ring In 18 K Gold and Platinum, GIA Certified.

Old Mine Cut Diamond Engagement Ring In 18 K Gold and Platinum, GIA Certified.

By MOGULDIAM INC

Located in New York, NY

A timeless symbol of romance and craftsmanship, this exquisite engagement ring features a stunning 2.01 carat old mine cut diamond at its center. Celebrated for its antique charm, th...

Category

2010s American Engagement Rings

Materials

Diamond, Gold, Platinum

2.29 ct certified Burmese cluster ruby ring in 18 k with 2 cts diamonds
2.29 ct certified Burmese cluster ruby ring in 18 k with 2 cts diamonds

2.29 ct certified Burmese cluster ruby ring in 18 k with 2 cts diamonds

Located in PARIS, FR

A 2.29 ct certified Burmese ruby ring in 18 karat yellow gold and platinum. This elegant ring is set with a large oval-cut Burmese ruby weighing 2.29 carats. The deep-red ruby is sur...

Category

Vintage 1960s French Cluster Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

Recent Sales

Contemporary 1.46 Carats Cushion Cut Pink Sapphire Diamond Platinum 18 K Ring
Contemporary 1.46 Carats Cushion Cut Pink Sapphire Diamond Platinum 18 K Ring

Contemporary 1.46 Carats Cushion Cut Pink Sapphire Diamond Platinum 18 K Ring

Located in Philadelphia, PA

Centering a mixed cushion cut pink sapphire weighing approximately 0.90 carat total. Transparent bright medium pink in color - set in a high polished gold bezel. Featuring a platinum...

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, White Diamond, Pink Sapphire, Platinum

Edwardian 0.62 CTW Old Mine Diamond Platinum 18 K Gold Antique Engagement Ring
Edwardian 0.62 CTW Old Mine Diamond Platinum 18 K Gold Antique Engagement Ring

Edwardian 0.62 CTW Old Mine Diamond Platinum 18 K Gold Antique Engagement Ring

Located in Philadelphia, PA

Centering an old mine cut diamond weighing approximately 0.52 carat - K color with VS2 clarity Set with platinum-topped talon prongs in a pierced basket and flanked by cathedral shou...

Category

Vintage 1910s Edwardian Engagement Rings

Materials

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

David Webb Jade Diamond Ring
David Webb Jade Diamond Ring

David Webb Jade Diamond Ring

By David Webb

Located in San Antonio, TX

18 K gold and platinum ring mounted with 3 pieces of jade and flanked by diamonds.Signed DAVID WEBB 18 K 900 PT

Category

Vintage 1970s American Dome Rings

Materials

Diamond, Jade, Platinum, 18k Gold

Estate 18 K Yellow Gold & Platinum Art Deco Style Ruby and Old European Cut Ring
Estate 18 K Yellow Gold & Platinum Art Deco Style Ruby and Old European Cut Ring

Estate 18 K Yellow Gold & Platinum Art Deco Style Ruby and Old European Cut Ring

Located in Scottsdale, AZ

Estate 18K yellow gold and platinum Art Deco style ruby and Old European cut diamond swirl ring. Centering one Old European cut diamond, six prong set, weighing approximately 0.64 ca...

Category

20th Century Art Deco Engagement Rings

Materials

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

2 Carat GIA Certified k-vs2 Diamond Ring Platinum and 18 Karat Yellow Gold
2 Carat GIA Certified k-vs2 Diamond Ring Platinum and 18 Karat Yellow Gold

2 Carat GIA Certified k-vs2 Diamond Ring Platinum and 18 Karat Yellow Gold

By carpenter and sons

Located in Aliso Viejo, CA

A stunning example of mid century bridal jewelry this ring stays true to that period. The center is a GIA Certified 2 Carat GIA Certified Round Brilliant Diamond set in a gorgeous pl...

Category

Vintage 1970s American Modern Engagement Rings

Materials

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

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Rose Cut Diamond Solitare Gold Ring
Rose Cut Diamond Solitare Gold Ring

Rose Cut Diamond Solitare Gold Ring

Located in Cairo, EG

Large rose cut diamond diameter 10mm×8mm in octagon shape excellent spark white color no inclousion with total estimate diamond weight of 3.5 carats centered in 14k gold solitaire ri...

Category

Mid-20th Century Solitaire Rings

Burma Ruby No-Heat 4.75 Carats Set in Vintage Platinum Mounting, Certified
Burma Ruby No-Heat 4.75 Carats Set in Vintage Platinum Mounting, Certified

Burma Ruby No-Heat 4.75 Carats Set in Vintage Platinum Mounting, Certified

Located in Northampton, MA

An enormous, spectacular four-carat cabochon-cut vivid pinkish-red no-heat Burma ruby commands attention in this extraordinary platinum Mid-century ring. The stoplight-red ruby measu...

Category

Mid-20th Century American Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

Cartier 'Clash De Cartier' Double Row Diamond Band Ring in 18 Karat Rose Gold
Cartier 'Clash De Cartier' Double Row Diamond Band Ring in 18 Karat Rose Gold

Cartier 'Clash De Cartier' Double Row Diamond Band Ring in 18 Karat Rose Gold

By Cartier

Located in Scottsdale, AZ

Ring Size: 51 or U.S. 5 The Cartier Clash De Cartier diamond double-row band ring is a bold yet refined masterpiece, blending architectural precision with timeless elegance. Crafte...

Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Diamond, Gold, 18k Gold, Rose Gold

4.96 Carat Green Beryl Square Radiant Cut Platinum Engagement Ring by Merkaba
4.96 Carat Green Beryl Square Radiant Cut Platinum Engagement Ring by Merkaba

4.96 Carat Green Beryl Square Radiant Cut Platinum Engagement Ring by Merkaba

By Merkaba

Located in Beverly Hills, CA

A refined platinum diamond engagement ring by Merkaba Jewelry Beverly Hills, centered by a natural green beryl weighing 4.96 carats in a square radiant cut. The vivid green hue is pa...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Beryl, Green Beryl, Multi-gemstone, White Diamond, Diamond, Platinum

GIA Certified 2.50 Carat L VS2 Radiant Natural Diamond Solitaire Engagement Ring
GIA Certified 2.50 Carat L VS2 Radiant Natural Diamond Solitaire Engagement Ring

GIA Certified 2.50 Carat L VS2 Radiant Natural Diamond Solitaire Engagement Ring

Located in Baltimore, MD

GIA Certified 2.50 Carat L VS2 Radiant Natural Diamond Solitaire Engagement Ring GIA report number: 6214295463 Metal: 14k yellow gold Weight: 3.25 grams Diamond: 2.50 carat L VS2 rad...

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Belle Époque French GIA 1.52 carat old mine cut diamond 18k gold silver ring
Belle Époque French GIA 1.52 carat old mine cut diamond 18k gold silver ring

Belle Époque French GIA 1.52 carat old mine cut diamond 18k gold silver ring

Located in Beverly Hills, CA

This exquisite Belle Époque French ring centers on a radiant 1.52 carat old mine cut diamond, certified by GIA #2536480164, displaying exceptional brightness with its F color and SI1...

Category

Vintage 1910s Belle Époque Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Silver

Vintage 3.01 Carat Old European Cut Diamond Solitaire Engagement Ring GIA
Vintage 3.01 Carat Old European Cut Diamond Solitaire Engagement Ring GIA

Vintage 3.01 Carat Old European Cut Diamond Solitaire Engagement Ring GIA

Located in Montgomery, AL

We always love a beautiful old European cut diamond!! Ring Details Material: Platinum Era: Edwardian 1900 - 1920 Weight: 4.8 Grams Shank Width: 1.7mm Head Height: 6.8mm Head Width: ...

Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

Fine Art Deco Natural Sapphire Diamond 18K White Gold Engagement Ring, GIA
Fine Art Deco Natural Sapphire Diamond 18K White Gold Engagement Ring, GIA

Fine Art Deco Natural Sapphire Diamond 18K White Gold Engagement Ring, GIA

Located in New York, NY

Classic, elegant estate Art Deco period 3.56 Carat natural blue sapphire diamond 18K white gold engagement ring Early 20th Century Circa 1920 Sapphire: 3.56 carats, octagonal, step c...

Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, White Gold, 18k Gold

Vintage Sapphire and Diamond Convertible Tiara Necklace
Vintage Sapphire and Diamond Convertible Tiara Necklace

Vintage Sapphire and Diamond Convertible Tiara Necklace

Located in London, GB

A vintage sapphire and diamond convertible tiara necklace. An exceptional vintage sapphire and diamond convertible tiara and necklace set, in platinum, circa 1950. This beautifull...

Category

Vintage 1960s French Retro Drop Necklaces

Materials

Diamond, Sapphire, Platinum

18ct Yellow Gold Diamond Ring – 2.67ct O/VVS2 Round Diamond
18ct Yellow Gold Diamond Ring – 2.67ct O/VVS2 Round Diamond

18ct Yellow Gold Diamond Ring – 2.67ct O/VVS2 Round Diamond

Located in London, GB

A stunning and substantial diamond ring crafted in 18ct yellow gold, showcasing an impressive 2.67ct round brilliant diamond. Graded O colour and VVS2 clarity, the central stone offe...

Category

2010s Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

Vintage 1.50 Ct Red Ruby 1.60 Ct F VVS Diamond 18 Kt
Vintage 1.50 Ct Red Ruby 1.60 Ct F VVS Diamond 18 Kt

Vintage 1.50 Ct Red Ruby 1.60 Ct F VVS Diamond 18 Kt

Located in Napoli, IT

This very charming vintage ring is 1970 circa Skilfully hand crafted as unique of solid 18 Kt gold Marvelous chic design with octagonal head set with Ruby and Diamonds An exceptional...

Category

Vintage 1970s Italian Contemporary Engagement Rings

Materials

Diamond, Ruby, 18k Gold

Antique Old Mine Cut Diamond Gold Ring
Antique Old Mine Cut Diamond Gold Ring

Antique Old Mine Cut Diamond Gold Ring

Located in Cairo, EG

Antique 14k gold old mine cut diamond ring in floral head designe with estimate diamond weight of 1.4 carats H colour vs clearity centered with large old mine cut diamond 0.42 ct pin...

Category

Vintage 1910s Cluster Rings

Victorian 3.60 Ct Certified Burma Natural Sapphire 2.30 Ct Diamond Ring
Victorian 3.60 Ct Certified Burma Natural Sapphire 2.30 Ct Diamond Ring

Victorian 3.60 Ct Certified Burma Natural Sapphire 2.30 Ct Diamond Ring

Located in Napoli, IT

Victorian Tradition Spectacular Victorian period Diamond and Sapphire cluster ring which is in the tradition of the antique jewellery, 1890/1900 ca Hand crafted of solid 18 Kt gold i...

Category

Antique Late 19th Century European Late Victorian Cluster Rings

Materials

Diamond, Sapphire, 18k Gold

Bezel GIA 3.01ctw Antique PEAR Diamond Engagement 18K Gold Signet Solitaire Ring
Bezel GIA 3.01ctw Antique PEAR Diamond Engagement 18K Gold Signet Solitaire Ring

Bezel GIA 3.01ctw Antique PEAR Diamond Engagement 18K Gold Signet Solitaire Ring

Located in New York, NY

A very ELEGANT and CLASSY ESTATE old-cut vintage PEAR** Diamond ring in an inspired chunky bezel signet style Gold ring, The stunning antique diamond is flush set in buttery rich 18k...

Category

Early 2000s American Modern Solitaire Rings

Materials

Diamond, 18k Gold

Antique Ring natural 3ctw. Emerald 0.6ctw Diamonds solid 18K Gold Ø US 6.75/ 5gr
Antique Ring natural 3ctw. Emerald 0.6ctw Diamonds solid 18K Gold Ø US 6.75/ 5gr

Antique Ring natural 3ctw. Emerald 0.6ctw Diamonds solid 18K Gold Ø US 6.75/ 5gr

Located in SE

Nice German cluster Emeralds and Diamonds Ring. Plain band and shoulders. Openwork crown in White Gold 16mm x 12.6mm x 6.9mm deep. All stones with open backs. Claw set natural oval c...

Category

Vintage 1930s German Art Deco Cluster Rings

Materials

Emerald, Diamond, Yellow Gold, White Gold, 18k Gold

Antique 14K Yellow Gold Clustered Emeralds and Diamond Cocktail Ring for Her
Antique 14K Yellow Gold Clustered Emeralds and Diamond Cocktail Ring for Her

Antique 14K Yellow Gold Clustered Emeralds and Diamond Cocktail Ring for Her

By VR Jewels

Located in New York, NY

Emerald ring in 14K Gold which perfectly goes with your personality and also helps you to improve your creativity. Designed with emeralds and diamonds that makes it a perfect fit to ...

Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold, Gold

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18 K Platinum Ring For Sale on 1stDibs

Find the exact 18 k platinum ring you’re shopping for in the variety available on 1stDibs. Frequently made of gold, 18k gold and white gold, this item was constructed with great care. You can easily find a 9691 antique edition and 5895 modern creations to choose from as well. You’re likely to find the perfect 18 k platinum ring among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. Creating a 18 k platinum ring has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., David Webb and Furrer-Jacot are consistently popular. While most can agree that any 18 k platinum ring from our collection can easily elevate most outfits, but the choice of a diamond version from the 10655 available is guaranteed to add a special touch to your ensemble. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and old european cut alternatives. There aren’t many items for men if you’re seeking a 18 k platinum ring, as most of the options available are for women and unisex.

How Much is a 18 K Platinum Ring?

The price for a 18 k platinum ring starts at $19 and tops out at $6,675,000 with these rings, on average, selling for $6,346.

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.