Hallmarks For Platinum Jewelry
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3,929
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Riviera 1.20 Carat Bespoke Sapphire Full Eternity British Hallmark Platinum Ring
By Hasbani Diamonds
Located in London, GB
Sapphire full eternity ring pave set in a platinum mount. Each round sapphire is secured by 4
Category
2010s European Bridal Rings
Materials
Sapphire, Platinum
Elsa Peretti for Tiffany & Co. .02 Carat Diamond Platinum Band Ring
By Elsa Peretti for Tiffany & Co.
Located in Stamford, CT
Platinum band ring with a round brilliant cut diamond design by Elsa Peretti for Tiffany & Co.
1
Category
21st Century and Contemporary Band Rings
Materials
Diamond, Platinum
Antique Art Deco Platinum Hallmarked Old Mine Diamond Three Stone Ring
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Hallmarked Old Mine Diamond Three Stone Ring. This gorgeous
Category
Vintage 1920s Unknown Art Deco Three-Stone Rings
Materials
Diamond, Platinum
Diamond Pendant Necklace Platinum 14K Gold Chain SPARK
By Estate Jewelry
Located in East Brunswick, NJ
Diamond Pendant Necklace Platinum 14K Gold Chain SPARK
This beautiful pendant is finely crafted in
Category
Late 20th Century Pendant Necklaces
Materials
Diamond, 14k Gold, Platinum
Zenith Watch Art Deco Platinum Diamond Antique Estate Jewelry
By Zenith Watch Company
Located in Beverly Hills, CA
made of platinum (tested & hallmarked) and encrusted with Old European cut and single cut diamonds (H-J
Category
Vintage 1930s Swiss Wrist Watches
Materials
Diamond, Platinum
Letter K Pendant Brooch Vintage Platinum Large Initial Script Estate Jewelry
Located in Torrance, CA
thick chain.
Metal & Hallmark: Platinum. The pendant is hallmarked "Pt 900" and "Pt 850" for platinum.
Category
Late 20th Century Unknown Modern Brooches
Materials
Platinum
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W 1 in L 2 in
Platinum Diamonds by the Yard Sprinkle Necklace by Elsa Peretti for Tiffany & Co
By Elsa Peretti for Tiffany & Co.
Located in Litchfield, CT
Circa 1980s, Platinum, by Elsa Peretti for Tiffany & Co. New York. This Diamonds by the Yard
Category
Vintage 1980s American Link Necklaces
Materials
Diamond, Platinum
Free Shipping
L 36 in
Vintage Patek Philippe Pocket Watch Pendant Platinum Estate Jewelry
By Patek Philippe
Located in Beverly Hills, CA
A Patek Philippe open face square pocket watch with a platinum case.
The dial has black Roman
Category
Vintage 1920s Swiss Art Deco Pocket Watches
Materials
Platinum
Cathy Waterman Multi Color Sapphire Platinum Necklace Estate Jewelry
By Cathy Waterman
Located in Beverly Hills, CA
A gorgeous necklace by Cathy Waterman crafted out of multi color sapphire beads with platinum
Category
1990s American Beaded Necklaces
Materials
Diamond, Sapphire, Platinum
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W 0.25 in L 40.5 in
Diamond Ring Platinum Band .89 TDW Engagement ZAI
By Estate Jewelry
Located in East Brunswick, NJ
highly desirable Platinum and weighs 6.0 grams. It is also hallmarked ZAI inside of the shank. The center
Category
20th Century Three-Stone Rings
Materials
Diamond, Platinum
Graff Earrings Multi-Colored Sapphire Diamond Platinum Estate Jewelry
By Graff London
Located in Beverly Hills, CA
grams.
The earrings are stamped with Graff maker's mark, hallmarks for platinum, the backs are made of
Category
Early 2000s British Dangle Earrings
Materials
Diamond, Sapphire, Platinum
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H 1.75 in W 0.25 in
Natural Oval Diamond Ring Platinum .90 TDW Engagement
By Estate Jewelry
Located in East Brunswick, NJ
wedding ring is crafted in luxurious Platinum.
There is also a hallmark inside of the shank.
The center
Category
Late 20th Century Three-Stone Rings
Materials
Diamond, Platinum
Vintage Diamond Anniversary Band Platinum Midcentury Ring Estate Jewelry
Located in Torrance, CA
10mm wide (0.39 inches), rising 5mm from the finger.
Metal & Hallmark: Platinum. The ring is not
Category
Mid-20th Century Unknown Modern Band Rings
Materials
Diamond, White Diamond, Platinum
Vintage Diamond Platinum Three-Stone Ring Estate Jewelry
Located in Beverly Hills, CA
.
The ring is stamped with a maker's mark CTI and hallmark for platinum.
About Platinum Jewelry:
Purity
Category
Vintage 1980s Unknown Three-Stone Rings
Materials
Diamond, Platinum
Vintage Platinum Diamond Earrings GIA Cluster Stud Estate Jewelry
Located in Beverly Hills, CA
karat gold.
About Platinum Jewelry:
Platinum is a rare metal, with a limited global supply. If all the
Category
Vintage 1930s Unknown Art Deco Stud Earrings
Materials
White Diamond, 18k Gold, White Gold, Platinum
Vintage Tiffany & Co. Pocket Watch Pendant Platinum Diamond Estate Jewelry
By Tiffany & Co.
Located in Beverly Hills, CA
pocket watch pendant is stamped with French Domestic and Import hallmark for platinum.
About Tiffany
Category
Vintage 1950s French Pocket Watches
Materials
Diamond, Platinum
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H 1.44 in W 1.38 in L 6.88 in
Vintage Art Deco White Enamel Necklace Platinum Fob Chain Jewelry
Located in Torrance, CA
/A
Size & Measurements: The necklace measures 15 inches in length.
Metal & Hallmark: Platinum
Category
Early 20th Century Unknown Art Deco Link Necklaces
Materials
Platinum, Enamel
Diamond Leaf Eternity Ring Platinum Band Vintage Fine Jewelry Estate
Located in Torrance, CA
platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Mid-20th Century Unknown Modern Band Rings
Materials
Diamond, White Diamond, Platinum
Art Deco brooch - 3.1 ct diamond - Old cut - Antique jewelry - Platinum 1930
Located in Antwerp, BE
precious metal has only just been introduced in the jewellery industry during this period. This platinum
Category
Vintage 1930s European Art Deco Brooches
Materials
Diamond, Platinum
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W 1.03 in D 0.34 in L 1.74 in
Briolette 0.60ct Diamond Fringe Earrings Estate Platinum Drops Fine Jewelry
Located in Torrance, CA
butterfly backings.
Metal & Hallmark: 900 platinum. The earrings are hallmarked "Pt900". The butterfly
Category
21st Century and Contemporary Unknown Contemporary Drop Earrings
Materials
Diamond, White Diamond, Platinum
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W 0.25 in L 0.5 in
Antique Deco Diamond Eternity Ring Vintage Platinum Estate Fine Jewelry
Located in Torrance, CA
platinum. The ring is not hallmarked though it has tested positive for 900 platinum.
Category
Early 20th Century Unknown Art Deco Band Rings
Materials
Diamond, Platinum
French Earrings by Mouawad Platinum Sapphire Diamond Estate Jewelry
By Mouawad
Located in Beverly Hills, CA
A pair of French earrings by Mouawad Jewelry, made in platinum and featuring sapphire and diamond
Category
Early 2000s French Clip-on Earrings
Materials
Diamond, Sapphire, Platinum
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H 1.5 in W 0.5 in D 0.25 in
Tiffany & Co Diamond Star Necklace Platinum 16" Chain Signed Estate Jewelry
By Tiffany & Co.
Located in Torrance, CA
in length. The star measures 15mm diameter (0.59 inches).
Metal & Hallmark: 950 platinum. The
Category
21st Century and Contemporary Unknown Contemporary Pendant Necklaces
Materials
Diamond, White Diamond, Platinum
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Dm 0.59 in L 16 in
Vintage Deco Diamond Band Platinum Wedding Ring Eternity Fine Jewelry
Located in Torrance, CA
.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Early 20th Century American Art Deco Band Rings
Materials
Diamond, White Diamond, Platinum
Amethyst Diamond Stud Earrings Vintage Platinum Round Fine Estate Jewelry
Located in Torrance, CA
backings for pierced ears.
Metal & Hallmark: 900 platinum & 14 karat white gold. The earrings are not
Category
Mid-20th Century Unknown Modern Stud Earrings
Materials
Amethyst, Diamond, Gold, 14k Gold, White Gold, Platinum
French Art Deco Diamond Ring Engagement Platinum Vintage Bridal Jewelry
Located in Torrance, CA
platinum. The outer base of the ring is hallmarked with a dog's head (French platinum purity stamp).
Category
Early 20th Century French Art Deco Cocktail Rings
Materials
Diamond, White Diamond, Platinum
5.25ct Aquamarine Sapphire Ring Gemstone Engagement Platinum Diamond 6 Jewelry
Located in Torrance, CA
) rising 9mm from the finger.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Blue Sapphire, Sapphire, White Diamond, Diamond, Aquamarine, Platinum
Antique Deco Diamond Ring Platinum Cocktail Vintage Estate Jewelry Heirloom
Located in Torrance, CA
inches), rising 7mm from the finger.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though
Category
Early 20th Century Unknown Art Deco Cocktail Rings
Materials
Diamond, White Diamond, Platinum
Antique Edwardian 0.55ct Diamond Engagement Ring Vintage Platinum Bridal Jewelry
Located in Torrance, CA
the finger. Note: the ring has been re-shanked.
Metal & Hallmark: Platinum. The ring is not
Category
Early 20th Century Unknown Edwardian Engagement Rings
Materials
Diamond, White Diamond, Platinum
Vintage Art Deco GIA 1.55ct Diamond Ring Engagement Platinum Jewelry
Located in Torrance, CA
feature etched floral and foliate details, a hallmark of Art Deco era jewelry. The ring would make a
Category
Early 20th Century American Art Deco Solitaire Rings
Materials
Diamond, White Diamond, Platinum
Cathy Waterman Diamond Star Earrings Platinum Estate Fine Signed Jewelry
Located in Torrance, CA
& lever backings for pierced ears. The earrings are small in size.
Metal & Hallmark: 900 platinum. The
Category
21st Century and Contemporary American Contemporary Drop Earrings
Materials
Diamond, White Diamond, 14k Gold, White Gold, Platinum
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W 0.36 in L 0.63 in
3.15ct Natural Jelly Opal Diamond Ring Platinum Estate Fine Jewelry
Located in Torrance, CA
inches) rising 13mm from the finger.
Metal & Hallmark: Platinum. The ring is hallmarked "P.m" (also acid
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Diamond, White Diamond, Opal, Platinum
4.92ct Natural Jelly Opal Diamond Ring Platinum Estate Fine Jewelry
Located in Torrance, CA
wide (0.53 inches) rising 11.5mm from the finger.
Metal & Hallmark: Platinum. The ring is hallmarked
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Diamond, White Diamond, Opal, Platinum
Antique Edwardian Negligee Necklace Opal Diamond Pearl Platinum Vintage Jewelry
Located in Torrance, CA
measures 1 3/4 inches x 1/2 inches (pearl drop).
Metal & Hallmark: 900 platinum. The necklace is not
Category
Early 20th Century Unknown Edwardian Drop Necklaces
Materials
Diamond, White Diamond, Opal, Pearl, Platinum, Sterling Silver
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H 1.75 in W 0.5 in L 15.5 in
TIFFANY & CO. SCHLUMBERGER Diamond Platinum Cufflinks Studs Jabot Set
By Jean Schlumberger for Tiffany & Co.
Located in New York, NY
Unveil a Legacy of Elegance: Tiffany & Co. Schlumberger Diamond and Platinum Set
Embrace timeless
Category
Late 20th Century French Contemporary Cufflinks
Materials
Diamond, Platinum
Vintage Art Deco Ring Diamond Turquoise Onyx Platinum Cocktail Jewelry
Located in Torrance, CA
.
Metal & Hallmark: Platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Early 20th Century Unknown Art Deco Cocktail Rings
Materials
Diamond, White Diamond, Onyx, Turquoise, Platinum
Antique Edwardian Sapphire Diamond Ring Vintage Platinum Long Plaque Jewelry
Located in Torrance, CA
& Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Early 20th Century Unknown Edwardian Cocktail Rings
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
Kutchinsky Platinum & 18K Yellow Gold Diamond Brooch And Earrings Jewelry Set
By Kutchinsky
Located in New York, NY
approximately 5 carats and crafted in 18 Karat Gold and Platinum. Today this bold Sixties and Seventies style
Category
20th Century British Modern More Jewelry
Materials
Diamond, Yellow Gold, Platinum
TIFFANY & Co. Elsa Peretti Platinum Tag Pendant Necklace
By Elsa Peretti for Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum Tag Pendant Necklace
Metal: Platinum
Weight: 6.40 grams
Category
2010s Pendant Necklaces
Materials
Platinum
Vintage 4ct Diamond Art Deco Necklace Platinum 15" Sapphire Estate Jewelry
Located in Torrance, CA
inches.
Metal & Hallmark: 14k white gold (chain) and 900 platinum (pendant drop). The necklace is not
Category
Early 20th Century Unknown Art Deco Pendant Necklaces
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
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H 2.5 in W 0.75 in L 15 in
10ct Aquamarine Diamond Ring Platinum Sz 6 Cocktail Jewelry Emerald Cut
Located in Torrance, CA
.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Mid-20th Century American Modern Cocktail Rings
Materials
White Diamond, Diamond, Aquamarine, Platinum
1.16ct Ruby Diamond Ring Platinum 6 Estate Fine Jewelry Gemstone Engagement
Located in Torrance, CA
inches) rising 6mm from the finger.
Metal & Hallmark: 900 platinum. The ring is hallmarked "Pt 900"
Category
21st Century and Contemporary Unknown Contemporary Engagement Rings
Materials
Diamond, White Diamond, Ruby, Platinum
TIFFANY & Co. Elsa Peretti Platinum Cross Pendant Necklace
By Elsa Peretti for Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum Cross Pendant Necklace
Metal: Platinum
Weight: 4.0 grams
Category
2010s Spanish Pendant Necklaces
Materials
Platinum
TIFFANY & Co. Elsa Peretti Platinum Cross Pendant Necklace
By Elsa Peretti for Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum Cross Pendant Necklace
Metal: Platinum
Weight: 4.20 grams
Category
2010s Spanish Pendant Necklaces
Materials
Platinum
Natural Paraiba Tourmaline Ring Diamond Sz 8.25 Estate CERT Platinum Jewelry
Located in Torrance, CA
inches) rising 7.5mm from the finger.
Metal & Hallmark: Platinum. The ring is hallmarked "PT950"
Category
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Tourmaline, Paraiba, Platinum
Antique Edwardian Diamond Ring Platinum Flower Design Vintage Plaque Jewelry 5
Located in Torrance, CA
finger.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though it has tested positive for
Category
Early 20th Century Unknown Edwardian Cocktail Rings
Materials
Diamond, White Diamond, Platinum
TIFFANY & Co. Elsa Peretti Platinum Teardrop Pendant Necklace
By Elsa Peretti for Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Elsa Peretti Platinum Teardrop Pendant Necklace
Metal: Platinum
Chain: 16"
Pendant
Category
2010s American Pendant Necklaces
Materials
Platinum
Vintage Deco Diamond Band Sz 5.75 Platinum Wedding Ring Eternity Fine Jewelry
Located in Torrance, CA
platinum. The ring is not hallmarked though it has tested positive for platinum.
Category
Early 20th Century Unknown Art Deco Wedding Rings
Materials
Diamond, White Diamond, Platinum
2.25ct Diamond Dangle Earrings Vintage Platinum 14k Gold Foliate Drops Jewelry
Located in Torrance, CA
platinum. The earrings are not hallmarked though they have tested positive for 14k gold and platinum.
Category
Mid-20th Century Unknown Modern Dangle Earrings
Materials
Diamond, White Diamond, 14k Gold, Yellow Gold, Platinum
Free Shipping
W 1 in L 2 in
Tiffany & Co Elsa Peretti 2.85 Carat Sapphire Platinum Bean Cufflinks
By Elsa Peretti for Tiffany & Co.
Located in Stamford, CT
, approx. 2.85cts
Platinum
Stamped: PT 950
Hallmark: TIffany + Co Elsa Peretti
28.4 grams
Top to bottom
Category
21st Century and Contemporary Cufflinks
Materials
Sapphire, Platinum
Free Shipping
W 0.79 in D 0.47 in L 0.73 in
Antique Edwardian 1ct Diamond Bracelet 14k Gold Platinum Round Bezel Jewelry
Located in Torrance, CA
wide (0.19 inches).
Metal & Hallmark: 14k yellow gold and 900 platinum. The bracelet is not
Category
Early 20th Century American Edwardian Link Bracelets
Materials
Diamond, White Diamond, 14k Gold, Yellow Gold, Platinum, Gold
Free Shipping
W 0.19 in L 6.5 in
2ct Diamond Heart Pendant Vintage Platinum Pave Set Estate Mid Century Jewelry
Located in Torrance, CA
: 900 platinum. The charm is not hallmarked though it has tested positive for platinum.
Category
Mid-20th Century American Modern Pendant Necklaces
Materials
Diamond, White Diamond, Platinum
Free Shipping
W 0.75 in L 1 in
Vintage Platinum Diamond Eternity Ring Mixed Cuts Sz 6.5 Wedding Band Jewelry
Located in Torrance, CA
1.7mm from the finger.
Metal & Hallmark: 900 platinum. The ring is not hallmarked though has been
Category
Mid-20th Century Unknown Retro Band Rings
Materials
Diamond, White Diamond, Platinum
New Georgian Style Old Cut Diamond Gold And Platinum Solitaire Ring, 2.72ct
By Moira Fine Jewellery
Located in London, GB
gold, with London Hallmark for 18ct gold and platinum, with date letter for 2022. Accompanied by GIA
Category
2010s British Georgian Engagement Rings
Materials
Diamond, 18k Gold, Platinum
Vintage Art Deco 2.25 Carat Diamond Ring Platinum Fine Jewelry Heirloom
Located in Torrance, CA
(0.74 inches) and 21mm wide (0.82 inches), rising 5mm from the finger.
Metal & Hallmark: 900 platinum
Category
Early 20th Century Unknown Art Deco Cocktail Rings
Materials
Diamond, White Diamond, Platinum
Tiffany & Co Jean Schlumberger Diamond Yellow Gold Platinum Pin Brooch
By Jean Schlumberger for Tiffany & Co.
Located in Holland, PA
18k Yellow Gold Platinum Diamond Brooch Pin by Jean Schlumberger for Tiffany & Co.
With 21 round
Category
Vintage 1980s American Brooches
Materials
Diamond, Yellow Gold, Platinum
Vintage Tiffany & Co. Peretti Diamond Platinum 18k Gold Nature Brooch
By Elsa Peretti for Tiffany & Co.
Located in Bellmore, NY
Diamond-set Platinum and 18k Gold Chives Brooch, a true testament to the enduring creativity and artistry
Category
1990s Brooches
Materials
White Diamond, Gold, 18k Gold, Platinum
Tiffany & Co Heart Diamond Charm Ring Estate Platinum Tag Sz 5.75 Jewelry
By Tiffany & Co.
Located in Torrance, CA
& Hallmark: 950 platinum. The ring is hallmarked "PT950" for platinum and "Tiffany & Co"
Category
21st Century and Contemporary American Modern Band Rings
Materials
Diamond, White Diamond, Platinum
Cartier Sapphire Diamond Ring Platinum Sz 6 Estate Signed Gemstone Jewelry Oval
By Cartier
Located in Torrance, CA
inches) and 10mm in length (0.39 inches), rising 4mm from the finger.
Metal & Hallmark: Platinum. The
Category
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
2.75ct Natural Jelly Opal Diamond Ring Platinum Estate Fine Jewelry Sz 6
Located in Torrance, CA
(0.33 inches) rising 9.5mm from the finger.
Metal & Hallmark: Platinum. The ring is hallmarked "Pt
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Opal, White Diamond, Diamond, Platinum
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Hallmarks For Platinum Jewelry For Sale on 1stDibs
On 1stDibs, you can find the most appropriate piece of hallmarks for platinum jewelry for your needs in our varied inventory. Frequently made of gold, white gold and platinum, this item was constructed with great care. 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 hallmarks for platinum jewelry 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. 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. Creating a choice in our collection of hallmarks for platinum jewelry has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., Shreve, Crump & Low and Hasbani Diamonds are consistently popular. An object in our assortment of hallmarks for platinum jewelry of any era or style can lend versatility to your look, but a version featuring diamond, from our inventory of 1325, is particularly popular. 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 brilliant cut alternatives. Most of our hallmarks for platinum jewelry for sale are for women, but there are 752 pieces available to browse for men.
How Much is a Hallmarks For Platinum Jewelry?
Prices for a piece of hallmarks for platinum jewelry can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $6,675,000, while this accessory, on average, fetches $7,146.
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