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Diamond Solitaire Platinum 18k

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1925s Art Deco 1.50 Carat E.VS Diamond 18 Karat Platinum Solitary Ring
Located in Poitiers, FR
Ring in platinum, dog's head hallmark. This splendid ring is adorned thanks to 8 claws, with a solitary brilliant-cut diamond. Total diamond weight: 1.50 carat approximately. Estimat...
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, White Diamond, Platinum

8.47 Carat Fancy Yellow Diamond GIA Platinum Ring Solitaire
Located in Beverly Hills, CA
Magnificent and classy yellow diamond solitaire ring! Features a 8.47-carat natural fancy yellow oval brilliant cut diamond flanked by two half-moon cut white diamonds. The fancy yel...
Category

21st Century and Contemporary More Rings

Materials

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

Leo Round Diamond 1.01 Carat Solitaire Ring Platinum and 18 Karat White Gold
By The Leo Diamond
Located in San Diego, CA
Leo Diamond Engagement Ring Style: 4 - Prong Solitaire Certification: IGI 7092060A Metal: 18kt Whit Gold Ring with Platinum Prongs Size / Measurements: 5 - sizable TCW: 1.01 cts...
Category

Early 2000s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Vintage 18 Carat Gold and Platinum Diamond Solitaire Ring
Located in Chipping Campden, GB
A superb vintage solitaire ring set with a beautiful round cut diamond, measuring approximately 35 points. The stone sits in a fine platinum claw setting. Modelled in 18 carat yello...
Category

Vintage 1970s Modern Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Edwardian Diamond Platinum and 18 Karat Yellow Gold Solitaire Ring
Located in Chipping Campden, GB
A stunning Edwardian diamond solitaire ring. The beautiful old European cut diamond measure approximately 50 points and has a clarity of SI2, it set in platinum with pretty platinum ...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Antique Solitaire Ring Diamond Yellow Gold 18 Karat and Platinum
Located in Valencia, Comunidad Valenciana
Solitaire ring antique style frame in yellow gold 18 carats and platinum setting weight 2.97 grs. Diamond Brilliant Cut 4.2 4.2x 1.7mm approx. weight 0.25 cts. Clarity Vs1 color G-H.
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Jewish Star Diamond and Cultured Pearl Ring
By Manhattan Platinum
Located in Coral Gables, FL
18 Karat Yellow Gold Ring Featuring One White Round Cultured Pearl. The Mounting Contains 18 Prong-set Round Diamonds Totaling Approximately 0.65 Carats of VS Clarity & G Color, in 6...
Category

1990s Solitaire Rings

Materials

Cultured Pearl, Diamond, 18k Gold, Yellow Gold

GIA Certified Pink Diamond in Platinum 18 Karat Pink Gold Solitaire Ring
Located in Hong Kong, HK
This intricate ring features a spectacular Pink diamond set amongst scintillating white diamonds. Unique and striking, each diamond is completely one-of-a-kind, this exceptional ring...
Category

2010s Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, Platinum

French Diamond Platinum Solitaire Ring, 20th Century
Located in St. Catharines, ON
A beautiful French diamond platinum solitaire ring set with a .10 ct diamond, mounted in 18k white gold and platinum. Paris, mid 20th century size 5 1/4.
Category

Vintage 1950s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Tiffany & Co. Diamond Solitaire Engagement Ring in Platinum I VS1 1.18 CTW
By Tiffany & Co.
Located in New York, NY
Tiffany & Co. Diamond Solitaire Engagement Ring in Platinum I VS1 1.18 CTW PRIMARY DETAILS SKU: 112687 Listing Title: Tiffany & Co. Diamond Solitaire Engagement Ring in Platinum I V...
Category

2010s Solitaire Rings

Materials

Diamond, Platinum

3.48 Carat Ruby and Diamond Solitaire Ring in Platinum and 18 Karat
Located in Wailea, HI
3.48 carat Ruby and Diamond Solitaire Ring in Platinum and 18k A Lively 3.48 carat Cushion Cabochon Ruby [bright with no imperfections visible to the naked eye] Twi Round Brilliant ...
Category

Late 20th Century Solitaire Rings

Materials

White Diamond, Ruby, Platinum, 18k Gold

1950s French Diamond White Gold Platinum Set Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage French 0.55 carat diamond and 18k white gold, platinum set solitaire ring; part our vintage jewelry/estate jewelry collections This impressive 1950s di...
Category

Vintage 1950s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Antique Diamond and White Gold Platinum Set Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive antique 1930s 0.83 carat diamond and 18 karat white gold, platinum set solitaire ring; part of our diverse antique jewelry and estate jewelry collections. This fine an...
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

2.04 Carat Diamond Gold Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 2.04 carat asscher cut diamond and 18 karat yellow gold, platinum solitaire ring; part of our diverse range of engagement rings. This stunning, fine ...
Category

2010s Contemporary Solitaire Rings

Materials

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

1930s Antique Diamond and Yellow Gold Platinum Set Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.32 carat diamond and 18 karat yellow gold, platinum set solitaire ring; part of our diamond jewelry and estate jewelry collections. This impressive a...
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Antique 1920s Diamond and White Gold with Platinum Set Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.65 carat diamond and 18 karat white gold, platinum set solitaire ring; part our antique jewelry/estate jewelry collections This impressive diamond so...
Category

Vintage 1920s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Roman Malakov, Platinum and Yellow Gold Round Diamond Flushed Solitaire Ring
By Roman Malakov
Located in New York, NY
A simple solitaire ring showcasing a 0.06 carat round brilliant diamond, set flushed in a matte finished yellow gold. The ring has a comfort fit style made in platinum. Size 10.25 US.
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

1.25 Carat Old European Cut Diamond Solitaire Art Deco Platinum Ring
Located in London, GB
This beautiful ring is directly from the Art Deco era circa 1925. It is made in 18kt white gold and platinum (tested). It is set with an old European cut diamond weighing around 1.25...
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

French Art Deco GIA 1.60 Oval Cut Diamond Platinum Solitaire Engagement Ring
Located in Beverly Hills, CA
Are you looking for a timeless and classic engagement ring? Consider this French Art Deco GIA 1.60 carat Oval Cut Diamond Platinum Solitaire Engagement Ring. There are no distracting...
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, Platinum, 18k Gold

Vintage Art Deco Diamond Solitaire, Crossover, 18 Karat Yellow Gold
Located in NEWARK, GB
A beautiful vintage Art Deco diamond, crossover solitaire ring. A decadent beauty, it would make for a beautiful Art engagement ring or perhaps just a treat for yourself or somebody...
Category

Early 20th Century Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

3.31 Emerald Cut Ruby and Diamond Solitaire Ring in Platinum, GIA Certified
Located in Wailea, HI
3.31 Emerald Cut Ruby and Diamond Solitaire Ring in Platinum and 18k GIA Certified Handmade Classic Design Ruby weighs 3.31 [bright with no imperfections visible to the naked eye] T...
Category

Late 20th Century Solitaire Rings

Materials

White Diamond, Ruby, 18k Gold, Platinum

6 Prong Diamond Solitaire Engagement Ring
Located in New York, NY
✧ Beautiful and classic 6 Prong Solitaire Diamond Engagement Setting in 14K, 18K Gold or Platinum ✧ The listed Price is for 14K Gold in any color ✧ The listed Price is for the settin...
Category

2010s Contemporary Solitaire Rings

Materials

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

Vintage Diamond Solitaire Engagement Ring, circa 1950s
Located in London, GB
This ring is a classic diamond solitaire engagement ring dating back to the 1950s. The round brilliant diamond weighs 0.22 carat and is illusion set within a platinum collet. The dia...
Category

Vintage 1950s Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GIA 1.87 Carat Emerald Cut Diamond 18 Karat Gold Solitaire Engagement Ring
Located in Beverly Hills, CA
This classic and timeless 1.87 Carat Emerald Cut Diamond 18k Gold Solitaire Engagement Ring is regal and full of character. The simple yellow gold setting perfectly showcases the dia...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Edwardian Diamond Solitaire Engagement Ring, circa 1910
Located in London, GB
This elegant and classic solitaire features an old cut diamond set to centre. The stone, which weighs 0.65 carat, has been claw set and graded as H in colour and VS1 in clarity. Th c...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 2.05 Carat White Diamond in Platinum 950 Solitaire Engagement Ring
By FERRUCCI
Located in Lake Peekskill, NY
GIA Certified 2.05 Carat white round diamond, color H, clarity VS2, triple Excellent in Cut, Symmetry and Polishing, set in hand made Platinum 950 gold Solitaire engagement ring, mad...
Category

2010s Modern Solitaire Rings

Materials

White Diamond, 18k Gold

1.08 Carat Diamond Solitaire Engagement Ring in 18 Carat Yellow Gold
Located in Yorkshire, West Yorkshire
This ring features a round brilliant cut Diamond weighing 1.08ct, four claw set to a white lily-style setting to tapering yellow shoulders in an 18ct Yellow Gold plain polished band....
Category

Late 20th Century Modern Solitaire Rings

Materials

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

Antique French Diamond 18 Karat White Gold Solitaire Ring, Circa 1920
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique French 0.68 Carat diamond solitaire ring in 18 karat white gold; part our antique engagement ring collections. This stunning, fine and impres...
Category

Vintage 1920s Solitaire Rings

Materials

Diamond, White Gold, Platinum

Victorian Diamond Solitaire Engagement Ring, circa 1900s
Located in London, GB
A delicate little diamond solitaire dating back to the 1900s. The Victorian design is evident throughout the design of the ring which highlights a 0.20 carat diamond. It has been est...
Category

Antique Early 1900s Victorian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Victorian Diamond Solitaire Engagement Ring, circa 1900s
Located in London, GB
This hand made ring has a claw set 0.30 carat old cut diamond in the centre. It is set within a box collet made of platinum, which really highlights the colour. Estimated as an I in ...
Category

Antique Early 1900s Victorian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

1994 Diamond Yellow Gold Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage 0.28 carat diamond and 18 karat yellow gold, platinum set solitaire ring; part of our diamond jewelry/estate jewelry collections This impressive vintag...
Category

1990s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Tiffany & Co. 0.57ct Round I VS1 Diamond Solitaire Engagement Ring, 18kt Rose
By Tiffany & Co.
Located in Houston, TX
This precious Tiffany & Co. engagement ring features a dainty 0.57ct round brilliant cut diamond, I VS1. The diamond is placed in a platinum setting and an 18kt rose gold engagement ...
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold, Platinum

1920s Diamond and Yellow Gold Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.58 carat diamond and 18k yellow gold solitaire ring with a platinum setting; part of our diverse diamond jewelry and estate jewelry collections This ...
Category

Vintage 1920s Solitaire Rings

Materials

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

Edwardian 0.51 Carat Diamond Solitaire Ring, circa 1910
Located in London, GB
Dating to 1910, this solitaire highlights a 0.51 carat old cut diamond. It has been claw set within platinum and graded as a H colour. The clarity is VS1 and the diamond is hand cut....
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Edwardian Illusion Set Diamond Solitaire Ring, circa 1910
Located in London, GB
This delicate little solitaire ring features a 0.30 carat old cut diamond within a rub over, illusion setting. The diamonds is G in colour and SI1 in clarity. The setting work has be...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Vintage Solitaire Diamond Engagement Ring, Circa 1950s/1960s
Located in Yorkshire, West Yorkshire
A neat and petite vintage diamond ring from the mid-20th century era. Featuring a single diamond approx. 0.54ct held in a white rex coronet setting. To either side of the main diao...
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Vintage 1.47 Carat Diamond Solitaire Ring with Diamond Shoulders
Located in Yorkshire, West Yorkshire
A diamond set ring centrally set with a round brilliant cut diamond, measuring approx. 7.15mm x 7.18mm x 4.15mm deep. Calculated carat weight 1.35ct, assessed SI2 clarity and H/I co...
Category

Late 20th Century Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Vintage 1950s Diamond Solitaire Ring, 1.31 Carat
Located in Yorkshire, West Yorkshire
What an exquisite solitaire ring this is; a round diamond set in a square mount. The diamond is set with four claws within a millegrain border. The mount is open allowing the light...
Category

Vintage 1950s Retro Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Estate Platinum and 18 Karat White Gold Round Diamond Engagement Ring
Located in Scottsdale, AZ
Estate platinum and 18K white gold round diamond engagement ring. Centering one round brilliant cut diamond, six prong set weighing 1.00 carat, having I color grade and I1 clarity gr...
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

GIA Certified 5.11 Carat Diamond Solitaire Ring
Located in Palm Beach, FL
Stunning 5.11 Carat Diamond set in 18K Yellow Gold ring with Platinum mounting. Diamond is GIA Certified as "Triple Excellent". A Triple Excellent diamond is a trade term for round...
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

GIA 3.58 Carat Shield Cut Diamond Solitaire Ring
By Jack Weir and Sons
Located in Beverly Hills, CA
Jack Weir & Sons Shield Cut Diamond Solitaire Ring. GIA certified 3.58 carat modified shield step cut O-P color, I1 clarity (#1146969108). F18k gold and platinum. Circa 2021. Size 6 ...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Edwardian 0.68ct Diamond Solitaire Engagement Ring, c.1910s
Located in London, GB
This one of a kind engagement ring was made in the 1910s, and shows the very beginnings of the Art Deco style. A lovely 0.68 carat old cut diamond is held within a platinum box setti...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Antique 1.40 Carat Solitaire Diamond Engagement Ring
Located in Denver, CO
This classic solitaire engagement ring features a stunning Old European cut diamond weighing 1.40 carats, L-M color, SI1 clarity, measuring 7.02 x 7.13 x 4.35mm mounted in a six pron...
Category

Mid-20th Century Retro Solitaire Rings

Materials

Diamond, 14k Gold, 18k Gold, Yellow Gold, Platinum

Vintage 0.35 Carat Diamond Solitaire Engagement Ring, circa 1950s
Located in London, GB
This pretty engagement ring was crafted in the 1950s and features a 0.35 carat diamond. It is round brilliant cut, and is an excellent F colour and VS2 clarity. The diamond is set in...
Category

Vintage 1950s Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Edwardian 0.60 Carat Diamond Solitaire Engagement Ring, circa 1910
Located in London, GB
A classic solitaire engagement ring. The diamond is 0.60 carat and has been estimated as a G in colour and VS1 in clarity, and is an old cut diamond. It has been hand cut and beautif...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 4.50 Carat Oval Diamond Solitaire Ring
Located in New York, NY
GIA certified Oval Diamond, L color, SI2 clarity. Set in a ultra thin 18k yellow Gold and Platinum ring. Can be restyled any way you like or ask us about many other diamond options w...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Late Deco 0.45 Carat Diamond Solitaire Ring, circa 1940s
Located in London, GB
This classic and timeless ring dates to the 1940s. The square setting work holds a round brilliant diamond weighing 0.45 carat. It has been estimated as an E in colour and SI1 in cla...
Category

Vintage 1940s Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Edwardian 0.56 Carat Diamond Solitaire Engagement Ring, circa 1910
Located in London, GB
This elegant ring features a single centre stone which weighs 0.56 carat. It has been graded as an F in colour and SI1 in clarity, and is a wonderful, hand cut, old cut diamond. It i...
Category

Vintage 1910s Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

2.01ct Marquise Diamond 18 Karat White Gold Platinum Engagement Ring, I Color
Located in Lancashire, Oldham
A modern 18 karat white gold and platinum claw set marquise diamond ring the diamond is 2.01ct, I colour and SI1 clarity. It is a pre-loved ring with very little signs of wear and wo...
Category

2010s Modern Solitaire Rings

Materials

Diamond, 18k Gold, Platinum, White Gold

GIA Certified Solitaire Diamond Ring from Bud and Blossom
Located in Denver, CO
This antique stamped “Bud and Blossom” ring from the 1930s features an Old European cut diamond measuring 1.04 carats, J color, SI1 clarity and set in platinum with 18kt yellow gold ...
Category

Mid-20th Century Art Deco Solitaire Rings

Materials

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

Vintage Engagement Ring Set with Solitaire Diamond on Fancy Twist Shoulders
Located in Yorkshire, West Yorkshire
A lovely solitaire style diamond engagment ring dating from circa 1940s to mid-century. The diamond weighs 0.15ct and sits within a white metal surroung of geometric cut pattern rem...
Category

Vintage 1940s Post-War Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 2.13 Carat No Heat Ruby Diamonds Ring 18 Karat and Platinum Fused
Located in New York, NY
GIA Certified 1.13Ct Natural Ruby Ring Report: 51511273432 Oval cut Clean Clarity & Transparent 6.84 X 5.49 X 3.32mm GIA: Red NO Heat 1.00ct. side princess cut diamonds G-c...
Category

2010s Solitaire Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

Art Deco 1.01 Carat Diamond Solitaire Engagement Ring, circa 1920s
Located in London, GB
This gorgeous art deco engagement ring features a 1.01 carat diamond suspended between diamond set split shoulders. The centre diamond is a G colour and SI1 clarity. Four baguette cu...
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GIA 1.76 Carat J/SI Round Brilliant Diamond Bead Set Platinum and 18 Karat Ring
Located in New York, NY
The Fused. (seems like two rings in one) GIA 1.26ct. Round, brilliant diamond Report: 2101644395 (please see certificate scan in photo menu) J-color, Si-2 clarity. Side diamo...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

0.25 Carat Old Cut Diamond Solitaire Engagement Ring, circa 1920s
Located in London, GB
An old cut diamond weighing 0.25 carat is claw set within an illusion style mounting and presented between hand-engraved platinum shoulders at the centre of this vintage 1920s diamon...
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

1.07 Carat Rectangle Cut Emerald and Diamond Ring, 18 Karat Gold and Platinum
Located in Greensboro, NC
Brighten up your wardrobe with a vibrant splash of color! Highlighted by a cathedral-style bridge, this 18k white gold diamond ring is crowned with a dazzling emerald solitaire set i...
Category

21st Century and Contemporary Solitaire Rings

Materials

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

GIA Certified 2.20 Carat Cushion Cut Diamond Ring Platinum Yellow VVS-2
Located in New York, NY
GIA Certified 1.20ct cushion cut diamond ring. Report Id: 2155069500 U-V Color Vvs-2 clarity 1.00ct. Round, full cut diamonds. G Color Vs-2 clarity. Platinum & 18kt. basket. 5...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

David Webb 52.55 Carat Emerald-Cut Diamond Gold Platinum Engagement Ring
By David Webb
Located in New York, NY
Throughout centuries, diamonds have represented permanence, luxury, and strength. This remarkable David Webb ring exudes all of that and more with its remarkable center emerald cut d...
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

GRS SWITZERLAND 14 Carat Cushion Cut Emerald Solitaire Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite cushion cut emerald solitaire ring composed by a very beautiful main emerald absolutely amazing color
Category

2010s Modern Solitaire Rings

Materials

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

GIA Certified 2.41ct natural cushion cut baguettes diamond ring platinum E/Vs2
Located in New York, NY
GIA Certified Diamond ring. Baguette accented. GIA Certificate: 2151915690 1.01ct. Natural Cushion Cut diamond E color Vs2 clarity (Please see report copy attached) 1.40ct....
Category

2010s Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

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Diamond Solitaire Platinum 18k For Sale on 1stDibs

On 1stDibs, you can find the most appropriate diamond solitaire platinum 18k for your needs in our varied inventory. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. Find an antique version now, or shop for 413 vintage or 111 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a diamond solitaire platinum 18k from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. A diamond solitaire platinum 18k from Tiffany & Co., Antinori Fine Jewels and J. Birnbach — each of whom created a beautiful version of this treasured accessory — is worth considering. 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 old european cut and cushion cut alternatives. Finding a diamond solitaire platinum 18k for sale for women should be easy, but there are 189 pieces available to browse for unisex as well as men, too.

How Much is a Diamond Solitaire Platinum 18k?

Prices for a diamond solitaire platinum 18k can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $450 and can go as high as $2,200,000, while this accessory, on average, fetches $5,512.

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 Bvlgari 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. The most collectible 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.