18ct Platinum
30
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220
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537
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506
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248
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167
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99
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50
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Art Deco Diamond 18ct & Platinum 3 Stone Ring
Located in Chipping Campden, GB
Art Deco Diamond 18ct & Platinum Ring
sweet and detailed so nicely, precious ring
The item comes
Category
Vintage 1920s British Art Deco Three-Stone Rings
Materials
Diamond, Platinum
Vintage 18ct & Platinum Diamond Crossover Ring Set with 0.25ct of Diamonds
Located in London, GB
Vintage 18ct & Platinum Diamond Crossover Ring Set with 0.25ct of Diamonds.
Additional Information
Category
Vintage 1970s British Cluster Rings
Materials
Diamond, Yellow Gold, Platinum
Vintage 18ct & Platinum 3-Stone Diamond Crossover Ring Set with 0.15ct Diamonds
Located in London, GB
Vintage 18ct &Platinum 3-Stone Diamond Crossover Ring, Set With 0.15ct Diamonds
This vintage
Category
2010s British Three-Stone Rings
Materials
Diamond, Yellow Gold, Platinum
Platinum Solitaire Diamond Ring Set With 0.40ct Princess Cut Diamond
Located in London, GB
princess cut diamond in 18ct Platinum setting.
A beautiful and elegant choice for an engagement ring or a
Category
2010s British Engagement Rings
Materials
Diamond, Platinum
Edwardian Black Pearl and Diamond Bar Brooch
Located in London, GB
crafted from 18ct yellow gold and tipped in platinum. The circular motif at the centre has been set with a
Category
Early 20th Century Brooches
Materials
Pearl, 18k Gold, Yellow Gold, Platinum
Edwardian 1.05 Carat Diamond Solitaire Engagement Ring
Located in London, GB
band of the ring is 18ct yellow gold the diamonds sit in platinum to emphasise their beautiful sparkle
Category
20th Century Solitaire Rings
Materials
Diamond, Yellow Gold
Edwardian Diamond Drop Earrings
Located in London, GB
(for pierced ears)
Tested As: 18ct & Platinum
Period: Circa. 1900
Box: Plain Gift Box
Category
Late 20th Century Drop Earrings
Materials
Diamond, Yellow Gold, Platinum
Art Deco Sapphire and Diamond Signet Ring
Located in London, GB
Sapphire Dimensions: 2 (5.5mm x 2mm), 6 (4mm x 2mm)
Tested As: 18ct & Platinum
Period: Circa. 1930
Box: The
Category
Vintage 1930s Art Deco Signet Rings
Materials
Diamond, Sapphire, Blue Sapphire, Gold, Yellow Gold, Platinum
Edwardian Old Cut Diamond Five-Stone Cluster Ring
Located in London, GB
. Colour: G-H, Clarity: SI-I
Rose Cut Diamond Dimensions: 33 (1mm)
Tested As: 18ct & Platinum
Period
Category
Antique Late 19th Century Edwardian Cluster Rings
Materials
Diamond, 18k Gold, Rose Gold
Art Deco Diamond Drop Earrings Circa 1920s
Located in ADELAIDE, SA
A pair of 18ct & Platinum, diamond set, Art Deco drop earrings. Each earring is claw set at the
Category
Vintage 1920s Art Deco Drop Earrings
Materials
Mixed Metal
Edwardian .85 Ct Diamond .35 Ct Sapphire 18 KT Platinum Ring
Located in Napoli, IT
example
Metal: 18 Kt yellow gold and platinum
Hallmarks: assay, slightly worn
Gems: 1 old mine cut
Category
Antique Early 1900s European Edwardian Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Platinum
Art Deco 2.15 Ct Sapphire 1.0 Ct Diamond 18 KT Platinum Ring
Located in Napoli, IT
a skilfully hand crafted mount of solid 18 kt gold and Platinum
Hand crafted mounting of solid 18
Category
Vintage 1920s Art Deco Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Platinum
Edwardian 1.65 Ct Diamond Daisy Platinum 18 KT Necklace
Located in Napoli, IT
Diamonds assessed G VVS/SI – 1.65 Ct. TCW
Original Platinum chain 42 cm.
Pendant is 44 mm. x 11 mm. (h. x w
Category
Antique Early 1900s European Edwardian Pendant Necklaces
Materials
Diamond, Platinum
Antique Edwardian 18ct Gold & Platinum Chain
Located in London, GB
Antique Edwardian 18ct Gold & Platinum Chain
The last three 18ct gold links on each end are yellow
Category
Antique Early 1900s British Edwardian Chain Necklaces
Materials
Gold, Platinum
Late Deco 13.10 Ct Diamond Riviere Necklace Platinum 18 KT
Located in Napoli, IT
18 Kt white gold
Hallmarks: none/worn
Gems: 27 baguette cut diamonds totaling approx 9.20 Ct (larger
Category
Vintage 1930s European Art Deco Chain Necklaces
Materials
Diamond, 18k Gold, Platinum
Floral-Design Round 4.19 Ct. Ruby and 1.50 Ct. Diamond Ring, Platinum & 18k Gold
Located in New York, NY
A Floral-Design Round 4.19 carats of Ruby and 1.50 carats of Diamond Ring made in Platinum & 18
Category
20th Century Cocktail Rings
Materials
Diamond, Ruby, 18k Gold, Platinum
Edwardian Style 1.60 Ct Diamond Platinum 18 KT Cluster Ring
Located in Napoli, IT
Details Below
Metal: 18 Kt yellow gold and platinum
Hallmarks: assay present but worn
Gems: 1 brilliant
Category
Mid-20th Century European Edwardian Cluster Rings
Materials
Diamond, 18k Gold, Platinum
Antique 18ct Gold & Platinum Opal Diamond Ring
Located in Brighton, GB
Antique Opal & Diamond Ring
18ct Gold & Platinum Stamped
Circa 1920s
Makers Mark H & T
Category
Early 20th Century English Engagement Rings
Materials
Diamond, Opal, Gold, 18k Gold, Platinum
Late Art Deco 1.50 Ct Diamond Buckle ring 18 Kt Platinum
Located in Napoli, IT
This impressive late Art deco ring is 1935 ca.
Hand modelled of solid 18 Kt gold and Platinum
Category
Vintage 1930s European Art Deco Cluster Rings
Materials
Diamond, 18k Gold, Platinum
Art Deco 27.60 Ct Natural Peridot Diamond 18 KT Platinum Pendant
Located in Napoli, IT
18 KT gold Platinum topped
Breath taking in design expressed in elegant mixed geometries between the
Category
Vintage 1920s European Art Deco Pendant Necklaces
Materials
Diamond, Peridot, 18k Gold, Platinum
Free Shipping
H 2.09 in W 0.91 in L 17.72 in
Art Deco 7.80 Ct Diamond Spray Lobe Earrings Platinum 18 KT
Located in Napoli, IT
ear rendered of solid Platinum and 18 KT backs
Made for pierced ears with large clip on to fit the
Category
Vintage 1930s European Art Deco Lever-Back Earrings
Materials
Diamond, 18k Gold, Platinum
Art Nouveau 9.50 Ct Diamond Natural Pearl 18 Kt Platinum Bracelet
Located in Napoli, IT
Excellent condition keeping with age
Metal: 18 Kt yellow gold and platinum
Hallmarks: assay (for both
Category
Early 20th Century European Art Nouveau Link Bracelets
Materials
Diamond, Natural Pearl, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Rectangular Pearl Ring
Located in Brighton, GB
Antique Pearl Ring
18ct Gold & Platinum Tested
Circa 1900
Pretty, little Edwardian ring. Set
Category
Early 20th Century European Engagement Rings
Materials
Pearl, Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Diamond Illusion Ring
Located in Brighton, GB
Antique Diamond Illusion Ring
18ct Gold & Platinum Stamped
Edwardian Circa 1910
Pretty, little
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Vintage 18ct Star Sapphire & Diamond Platinum Ring
Located in Scotts Valley, CA
Details:
This fabulous ring is a show stopper! The star sapphire is a beautiful misty blue grey color with a fabulous glow. This ring is from Granat Bros, and is stamped on the insid...
Category
Early 20th Century American Art Deco Cocktail Rings
Materials
Diamond, Star Sapphire, Platinum
Antique 18ct Gold & Platinum Sapphire Diamond Chequerboard Ring
Located in Brighton, GB
Antique Chequerboard Ring
18ct Gold Stamped
Circa 1910
Fabulous, antique chequerboard ring. Set
Category
Early 20th Century English Engagement Rings
Materials
Diamond, Sapphire, Gold, Platinum
Antique 18ct Gold & Platinum Ruby Diamond Dormeuse Earrings
Located in Brighton, GB
Antique Ruby & Diamond Earrings
18ct Gold & Platinum
Circa 1910
Beautiful antique drop earrings
Category
Early 20th Century English Drop Earrings
Materials
Diamond, Ruby, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Diamond Daisy Pendant Necklace
Located in Brighton, GB
Antique Diamond Necklace
18ct Gold & Platinum
Circa 1910
Pretty, Edwardian daisy pendant. Set
Category
Early 20th Century English Edwardian Pendant Necklaces
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Art Deco Signet Ring
Located in Brighton, GB
Antique Signet Ring
18ct Gold & Platinum
Circa 1920’s
Fabulous Art Deco Square Faced Signet
Category
Early 20th Century English Art Deco Signet Rings
Materials
Gold, 18k Gold, Platinum
Vintage 1940’s 18ct Gold & Platinum Diamond Engagement
Located in Brighton, GB
Vintage Diamond Cluster Ring
18ct Gold & Platinum Stamped
Circa 1940’s
Beautiful, vintage
Category
Mid-20th Century English Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Diamond Daisy Ring
Located in Brighton, GB
Antique Diamond Daisy Ring
18ct Gold & Platinum Stamped
Circa 1910
Pretty, Edwardian diamond
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Retro 13.30 Ct Diamond Fleur De Lys Curb 18 KT Platinum Necklace
Located in Napoli, IT
solid 18 KT gold with a solid Platinum centre piece
Fine curb chain with alternating Diamond set links
Category
Vintage 1940s Italian Retro Chain Necklaces
Materials
Diamond, 18k Gold, Platinum
Free Shipping
H 1.11 in W 1.19 in L 16.93 in
Antique 18ct Gold & Platinum Edwardian Diamond Bombe Ring
Located in Brighton, GB
Antique Diamond Bombe Ring
18ct Gold & Platinum Tested
Circa 1900
A truly fabulous, Edwardian
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
18ct Gold & Platinum Baguette Shoulders Diamonds Engagement Ring
Located in Brighton, GB
Side
18ct Gold & Platinum
UK Size L
US Size 6
Can be resized for a small additional fee
Category
Late 20th Century English Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Vintage 18ct Gold Platinum, Sapphire & Diamond Harlequin Necklace
Located in Brighton, GB
Vintage Harlequin Necklace
18ct Gold & Platinum
Circa 1980’s
Beautiful, vintage necklace. Set
Category
Late 20th Century European Link Necklaces
Materials
Diamond, Sapphire, Gold, 18k Gold, Platinum
10.11 ct. Yellow Sapphire Ring, Ceylon Heated, Platinum and 18k Yellow Gold
By SONYA K.
Located in Brooklyn, NY
main stone is set in 18K yellow gold; the shank and the side stones are set in platinum.
Ring size
Category
21st Century and Contemporary American Modern Engagement Rings
Materials
Yellow Sapphire, Diamond, Yellow Gold, Platinum, 18k Gold
Antique 18ct Gold & Platinum Edwardian Oval Diamond Ring
Located in Brighton, GB
Antique Diamond Ring
18ct Gold & Platinum Stamped 750
Circa 1910
Fabulous, Edwardian oval
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Cabochon Garnet Diamond Ring
Located in Brighton, GB
Antique Garnet & Diamond Ring
18ct Gold & Platinum Stamped
Circa 1900
Fabulous Oval Shaped
Category
Early 20th Century English Fashion Rings
Materials
Diamond, Garnet, Gold, 18k Gold, Platinum
Antique Bracelet 5.5 ct Sapphire 2.3ctw Diamonds 18K Gold Platinum /17.7cm/9.4gr
Located in SE
Beautiful German Art Deco period bracelet made in the 1920s -1930s.
Solid 18K Yellow Gold and
Category
Vintage 1930s German Art Deco Link Bracelets
Materials
Diamond, Sapphire, 18k Gold, Platinum
Free Shipping
L 6.97 in
Art Deco 1.05 Ct Diamond G VVS 18 Kt Platinum Navette Ring
Located in Napoli, IT
beautiful as the top, detailed and over cared into details, crafted of solid 18 Kt gold with Platinum top
Category
Vintage 1920s Art Deco Cluster Rings
Materials
Diamond, 18k Gold, Platinum
Antique Ring 0.1 ct Diamond solid 18K Yellow Gold Platinum ØUS6 / 2.8gr
Located in SE
.
Hallmarked " Plat for Platinum , 18ct.
Diamond of old European cut Ø 2.75 mm x 1.6 mm deep / ca. 0.1 ct
Category
Vintage 1920s American Art Deco Cluster Rings
Materials
Diamond, Pearl, 18k Gold, Platinum
Sparkly 18ct Gold and Platinum 0.5ct Diamond Cluster Ring
Located in St Helens, GB
A superb diamond ring circa 1950.
Solid 18 carat yellow gold shank with platinum head setting
Category
20th Century Engagement Rings
Materials
Diamond, Gold, Platinum
Galen 1990s Diamond Solitaire Band 18ct Gold Platinum
Located in Hamilton, AU
Exuding a perfect aura of grace and simplicity, The Galen Ring, circa 1990s, holds a darling solitaire Transition Cut diamond in a luxurious white gold setting. Her minimalist desig...
Category
1990s Unknown Modern Band Rings
Materials
Diamond, Gold, 18k Gold, Yellow Gold, Platinum
Art Deco .40 Ct Old Mine Diamond Platinum 18 KT gold Stud Earrings
Located in Napoli, IT
: Platinum and 18 Kt white gold, tested
Hallmarks: none/worn – assay on the fastener
Gems: 2 old mine cut
Category
Vintage 1920s European Art Deco Stud Earrings
Materials
Diamond, Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Diamond Circlet Drop Earrings
Located in Brighton, GB
Antique Diamond Drop Earrings
18ct Gold & Platinum
Circa 1910
Fabulous, Edwardian Circlet Drop
Category
Early 20th Century English Edwardian Drop Earrings
Materials
Diamond, Gold, 18k Gold, Platinum
Free Shipping
W 0.56 in L 1.38 in
Antique 18ct Gold & Platinum 3 Stone Diamond Heart Ring
Located in Brighton, GB
Antique 3 Stone Heart Ring
18ct Gold & Platinum Stamped
Circa 1920’s
Pretty, antique three
Category
Early 20th Century English Three-Stone Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Round Diamond Cluster Ring
Located in Brighton, GB
Antique Cluster Ring
18ct Gold & Platinum (band stamped 750)
Circa 1900
Fabulous, Edwardian
Category
Early 20th Century English Edwardian Cluster Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum 5 Stone Illusion Diamond Ring
Located in Brighton, GB
Antique 5 Stone Diamond Ring
18ct Gold & Platinum Stamped
Makers Mark H G & S
Circa 1900
Category
Early 20th Century English Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Sapphire Diamond Daisy Cluster Ring
Located in Brighton, GB
Antique Cluster Ring
18ct Gold & Platinum Stamped
Circa 1910
Gorgeous, Edwardian cluster ring
Category
Early 20th Century English Cluster Rings
Materials
Diamond, Sapphire, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Lattice Diamond Marquise Ring
Located in Brighton, GB
Antique Diamond Ring
18ct Gold & Platinum
Circa 1910
Fabulous, Edwardian marquise shaped ring
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Diamond Pearl Bow Necklace
Located in Brighton, GB
Antique Bow Necklace
Platinum & 18ct Gold
Circa 1910
Pretty, Edwardian necklace. Features a
Category
Early 20th Century English Edwardian Pendant Necklaces
Materials
Diamond, Pearl, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Two Row Diamond Ring
Located in Brighton, GB
Antique Diamond Ring
18ct White Gold & Platinum Tested
Circa 1910
Fabulous, Edwardian era, two
Category
Early 20th Century English Edwardian Engagement Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Tiffany & Co. Pear Shape 1.26 Ct Diamond 18k Yellow Gold Platinum Solitaire Ring
By Tiffany & Co.
Located in Tokyo, JP
Brand:TIFFANY&Co.
Name:Pear Shape Diamond Ring
Material :1P Diamond (D1.26ct E-VVS2), 750 K 18 YG
Category
Early 2000s American More Rings
Materials
Diamond, Yellow Gold, Platinum
Antique 18ct Gold & Platinum Edwardian Diamond Dormeuse Drop Earrings
Located in Brighton, GB
Antique Diamond Drop Earrings
18ct Good & Platinum
Edwardian Circa 1910
Fabulous Diamond Drop
Category
Early 20th Century English Edwardian Drop Earrings
Materials
Diamond, Gold, 18k Gold, Platinum
Gems Are Forever 0.81 Ct Yellow Diamond Halo Necklace 18K Yellow Gold Platinum
By Gems Are Forever
Located in beverly hills, CA
diamond with VS clarity weighing 0.81 carat is encircled with fine 18K yellow gold milgrain. Halo of
Category
2010s American Contemporary Pendant Necklaces
Materials
Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
Vintage Platinum 18ct Yellow Gold Solitaire Ring with 0.125ct Diamond
By Unbranded
Located in London, GB
Vintage Platinum 18ct Yellow Gold Solitaire Ring, Total Diamond Weight 0.125ct
Additional
Category
2010s British Solitaire Rings
Materials
Diamond, Yellow Gold, Platinum
Tiffany & Co. Schlumberger 18ct yellow gold, platinum & diamond leaf brooch
By Jean Schlumberger for Tiffany & Co.
Located in London, GB
finely scalloped undulating golden leaves crafted from rich 18ct yellow gold, the platinum centre
Category
Mid-20th Century European Retro Brooches
Materials
Diamond, Yellow Gold, Platinum
Antique 1920s Five Stone 18ct Gold Platinum 0.25ct Diamond Ring
Located in London, GB
& STAMPS
PL, 18ct
ERA
1920s
MEASUREMENTS
Height - 0.3cm / 0.1
Width - 1.5cm / 0.5"
Necklace Length - 18
Category
Vintage 1920s English Wedding Rings
Materials
Diamond, Gold, Platinum
Antique 18ct Gold & Platinum 1920’s Diamond Three Stone Ring
Located in Brighton, GB
Antique Diamond Ring
18ct Gold & Platinum Tested
Circa 1920
Pretty, 1920’s diamond trilogy
Category
Early 20th Century English Three-Stone Rings
Materials
Diamond, Gold, 18k Gold, Platinum
Antique 18ct Gold & Platinum Pink Pearl & Diamond Brooch - c.1920
Located in London, GB
We are delighted to offer this exquisite 18ct gold & platinum brooch made c.1920
The brooch
Category
Early 20th Century Edwardian Brooches
Materials
Diamond, Pearl, Gold, Platinum
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18ct Platinum For Sale on 1stDibs
Surely you’ll find the exact piece of 18ct platinum you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and platinum. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect item from our selection of 18ct platinum may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing choice in our collection of 18ct platinum — no matter the origin — is easy, but LB Exclusive, Tiffany & Co. and Hancocks each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also old european cut cut and old mine cut cut versions available here, too. Most of our 18ct platinum for sale are for women, but there are 1894 pieces available to browse for men.
How Much is a 18ct Platinum?
The price for a piece of 18ct platinum starts at $80 and tops out at $1,176,500 with these rings, on average, selling for $4,907.
Read More
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