Vivid Green Colombian Emerald & Diamonds in Platinum ring
Located in Sydney, NSW
A truly stunning art deco inspired Colombian Emerald and Diamond ring in platinum PT950 Colombian
2010s Art Deco Cocktail Rings
Emerald, Platinum
Vivid Green Colombian Emerald & Diamonds in Platinum ring
Located in Sydney, NSW
A truly stunning art deco inspired Colombian Emerald and Diamond ring in platinum PT950 Colombian
Emerald, Platinum
Platinum, Diamond, and Pearl Drop Necklace
Located in Princeton, NJ
A platinum (PT950) necklace designed as a strand of round brilliant diamonds bordered on either
Diamond, Pearl, Platinum
.33 Carat Round Diamond Woven Platinum Wedding Band Ring
Located in Stamford, CT
Tested: 950 Platinum Stamped: PT 950 7.1 grams Width at top: 3.95mm Height at top: 3.05mm Width at Bottom
Diamond, Platinum
0.77 Carat Diamond Platinum Eternity Ring
Located in Stamford, CT
taken Platinum Tested: Platinum Stamped: Pt950 950 Platinum 2.8 grams Width at top: 2mm Height at
Diamond, Platinum
Tiffany & Co. Classic Wedding Band Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Style: Classic Wedding Band Ring Width: 3 MM Metal: Platinum PT950 Size: 5
Platinum
$7,980Sale Price|23% Off
Tiffany & Co. Platinum Soleste Diamond Ring 0.94ct 5.1g
By Tiffany & Co.
Located in SYDNEY, NSW
An elegant Tiffany & Co. Soleste diamond ring crafted in platinum (PT950), showcasing the
Diamond, Platinum
2.80 Carat Diamond Platinum Eternity Band Ring
Located in Stamford, CT
Stamped: PT 950 5.9 grams Width at top: 3.7mm Height at top: 3.3mm Width at bottom: 3.7mm
Diamond, Platinum
1.43 Carat Diamond and Platinum Stud Earrings
Located in Jesmond, Newcastle Upon Tyne
maker's mark (DOM), the convention mark, the platinum fineness mark -950- and the Birmingham Assay Office
Diamond, Platinum
Contemporary Diamond Heart Pendant Necklace in Platinum
Located in London, England
and hallmarked PT950 (for platinum). Lastly, a valuation for insurance and authenticity will accompany
Diamond, Platinum
Platinum Tsavorite 2+ Carat Diamond Ring
Located in Lexington, KY
Tsavorite and Diamond Ring Ring size: 6.5 Gram weight: 6.9 grams Platinum (Marked PT950) 2.312 total
Diamond, Garnet, Gold, White Gold, Platinum
Tiffany & Co Platinum Bubbles Collection Diamond Band Ring
By Tiffany & Co.
Located in San Diego, CA
: 128-21-15735147 Metal: Platinum PT950 Size: 5.25 Measurements: 8mm Main Diamond: 28 Round
Diamond, Platinum
$31,200Sale Price|20% Off
Tiffany & Co. Diamond Inside-Out Hoop Platinum Earrings
By Tiffany & Co.
Located in Chicago, IL
A sophisticated pair of Tiffany & Co. inside-out hoop earrings, crafted in platinum (Pt950) and
Diamond, Platinum
Tiffany & Co. 1.50 Carat Diamond Platinum Garland Bracelet
By Tiffany & Co.
Located in Stamford, CT
: PT 950 Hallmark: Tiffany + Co. 1999 5.1 grams Width: 19.1mm Thickness/depth: 2.76mm Please Note, we
Diamond, Platinum
$2,895Sale Price|41% Off
Tiffany & Co. Platinum Diamond Forever Band Ring 0.27ct 4.58g
By Tiffany & Co.
Located in SYDNEY, NSW
of 0.27ct. Metal: Platinum PT950 Carat: 0.27ct Colour: N/A Clarity: N/A Cut: Round Brilliant Cut
Diamond, Platinum
Tiffany & Co. HARMONY Band Ring with Diamonds Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. HARMONY Diamond Band Ring Style: Band Ref. number: 60004581 Metal: Platinum PT950
Diamond, Platinum
Tiffany & Co. Diamond Platinum Sea Whelk Shell Brooch
By Tiffany & Co.
Located in Stamford, CT
diamonds full cut F VS Approx. total weight 2.00 cts Platinum Tested: Platinum Stamped: Pt 950 Hallmark: c
Diamond, Platinum
Tiffany & Co. Hummingbird Diamond Brooch Pin in Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Hummingbird Diamond Pin Brooch Style: Vintage Pin / Brooch Metal: Platinum PT950
Diamond, Platinum
Platinum & Diamond Belle Epoque Style Drop Earrings
Located in Brisbane City, QLD
gorgeous wedding anniversary gift for a fine jewel lover. Marked - 'Pt 950' for platinum to earring posts
Diamond, Platinum
Tiffany & Co. Platinum Diamond Kaleidoscope Key Pendant Necklace 16"
By Tiffany & Co.
Located in New York, NY
Tiffany & Co. Platinum Diamond Kaleidoscope Key Pendant Necklace 16" Platinum Pt950 Pendant
Diamond, Platinum
Vintage Tiffany & Co. Platinum Diamond Butterfly Brooch
By Tiffany & Co.
Located in New York, NY
dimension without overwhelming the design. Platinum Construction (PT950) Marked “Tiffany & Co.” & “PT950
Diamond, Platinum
$68,000Sale Price|20% Off
Diamond 10.00 Carat Platinum Art Deco Bracelet
Located in Chicago, IL
, this bracelet is finely executed in platinum (Pt 950) and set with an impressive approximately 10.00
Diamond, White Diamond, Platinum
Vintage 0.97 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
the fineness mark for platinum (PT950) and the maker's mark. This vintage diamond ring is supplied
Diamond, Platinum
$72,000Sale Price|20% Off
Tiffany & Co. Embrace Platinum Round Brilliant Ring
By Tiffany & Co.
Located in Chicago, IL
An exquisite and timeless Tiffany & Co. Embrace engagement ring, crafted in platinum (PT950) and
Diamond, White Diamond, Platinum
$88,000Sale Price|20% Off
Patek Philippe Platinum Emerald and Diamond Ring
By Patek Philippe
Located in Chicago, IL
, crafted in platinum (PT950) and signed P.P.Co. This sophisticated ring showcases a stunning oval cut
Diamond, Emerald, Platinum
Tiffany & Co Soleste Cushion 0.22 CT Diamond Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
. number: 2050956 Metal: Platinum Pt950 Size / Measurements: 4.5 sizable / 2 mm Main Diamond: Cushion
Diamond, Platinum
Tiffany & Co. Platinum Diamond & Sapphire Turtle Pin Brooch
By Tiffany & Co.
Located in Chicago, IL
A charming and collectible Tiffany & Co. turtle pin brooch, crafted in platinum (Pt950) and
Diamond, White Diamond, Sapphire, Platinum
Platinum, Sapphire, and Diamond Three Stone Ring
Located in Princeton, NJ
A significant platinum (PT950), sapphire, and diamond three stone ring centering an 11.93 carat
Diamond, Sapphire, Platinum
Tiffany & Co. Jazz Legacy Diamond Necklace in Platinum
By Tiffany & Co.
Located in Chicago, IL
seamless and sophisticated silhouette. Expertly crafted in platinum (PT950) with five articulated diamond
Diamond, Platinum
Art Deco Platinum Cabochon Emerald Diamond Ring, 1930s
Located in Monaco, MC
style. The ring is crafted in platinum (Pt 950), weighing 10.1 grams. The cabochon emerald displays a
Diamond, Emerald, Platinum
$64,000Sale Price|20% Off
Tiffany & Co. Platinum Lucida Diamond Pendant Necklace
By Tiffany & Co.
Located in Chicago, IL
elegant Lucida pendant necklace is finely crafted in solid platinum 950, weighing 4.7 grams. The pendant
Diamond, White Diamond, Platinum
Tiffany & Co. Soleste Full Eternity Diamond Platinum Wedding Band Ring
By Tiffany & Co.
Located in University Place, WA
. Details Platinum (PT950) Full circle of round brilliant diamonds (full eternity) Soleste beaded setting
Diamond, Platinum
10.98 Carat Round Diamond X Link Platinum Necklace
Located in Stamford, CT
10.98 Total length: 16 inches 54.2 Grams Platinum Stamped: PT 950 Tested: Platinum Hallmark: B-K Width
Diamond, Platinum
8.19 Carat Pear Morganite Diamond Platinum Dangle Earrings
Located in Stamford, CT
Tested: 950 Platinum Stamped: Pt 950 10.2 grams Top to bottom: 33.13mm or 1.30 inches Width: 9.04mm or
Diamond, Morganite, Platinum
Tiffany & Co. Victoria Diamond Tennis Bracelet 3.08 tcw in Platinum
By Tiffany & Co.
Located in San Diego, CA
: 60088600 Metal: Platinum PT950 Size: Small Length: 7' Inches Main Stone: 51 Round Brilliant Diamonds
Diamond, Platinum
.60 Carat Diamond Platinum Violin Pendant Brooch
Located in Stamford, CT
Three-dimensional violin brooch pendant in solid platinum with pave and channel set diamonds. 24
Diamond, Platinum
$52,000Sale Price|20% Off
Tiffany & Co. Novo Platinum Cushion Diamond Stud Earrings
By Tiffany & Co.
Located in Chicago, IL
& Co. Novo diamond stud earrings crafted in solid Platinum 950. Diamonds: One cushion cut diamond
Diamond, Platinum
Tiffany & Co. Victoria Marquise Diamond Platinum Flower Ring, 1997
By Tiffany & Co.
Located in University Place, WA
the maison's renowned precision in marquise-cut diamonds. Details: Platinum (PT950) Four marquise-cut
Diamond, Platinum
Vintage Double Row Diamond Platinum Wedding Band Ring
Located in Montreal, QC
Diamonds, weighing approx. 0.24tcw. Hand crafted Platinum mounting. PT950 RMFJ D0.24" stamped in shank
Diamond, Platinum
3.22 Carat Diamond by Yard Platinum Necklace
Located in Stamford, CT
. 24 round brilliant cut diamonds G-H I, approx. 3.22cts Platinum Stamped: PT950 9.5 grams Total
Diamond, Platinum
Fred of Paris Platinum Diamond Engagement Ring 1.23CT Sz 6
Located in Feasterville, PA
Material: Platinum Metal Purity: 950 Color: White Main Stone: Diamond Size: EU 52/ US 6 Weight
Diamond, Platinum
Toi&Moi 2 Carats diamond ring in platinum
Located in Uccle, BE
Vintage platinum ring signed "Wolfers 1812". Wolfers, founded in 1812 in Brussels, is one of
Diamond, Platinum
Tiffany & Co. Lucida Platinum Wedding Band Ring 3 mm
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Lucida Wedding Band SKU Number: 14762205 Metal: Platinum PT950 Size: 8
Platinum
$60,000Sale Price|20% Off
Harry Winston 6.50 Carat Diamond Flower Platinum Brooch
By Harry Winston
Located in Chicago, IL
brilliance and lively scintillation. Expertly crafted in platinum (PT950), the piece displays the remarkable
Diamond, White Diamond, Platinum
$2,280Sale Price|20% Off
Tiffany & Co. Harmony Platinum Engagement Ring with Diamonds
By Tiffany & Co.
Located in Aventura, FL
craftsmanship. Brand: Tiffany & Co. Collection: Harmony Period: Contemporary Metal: Platinum (PT950) Stones
Diamond, White Diamond, Platinum
Tiffany & Co. Lucida Platinum Wedding Band Ring 4.5 MM
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Lucida Wedding Band SKU Number: 14762949 Metal: Platinum PT950 Size: 8
Platinum
1.65 Carat Diamond Platinum Art Deco Pendant Necklace
Located in Stamford, CT
Platinum Stamped: PT 950 10.0 grams Top to bottom: 34.4mm or 1 1/3 Inch Width: 17.7mm or 11/16 Inch Depth
Diamond, Platinum
Tiffany & Co. Platinum Eternity Band Ring Round Diamonds 0.51tcw
By Tiffany & Co.
Located in San Diego, CA
/10601762 Metal: Platinum PT950 Size: 6 Measurements: 2.5 MM TCW: 0.51 tcw Main Diamond: 39 Round
Diamond, Platinum
1.78 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
interior of the shank with the platinum mark (PT950). This impressive diamond solitaire with diamond
Diamond, Platinum
Tiffany & Co. Pavé Diamond Heart Dangle Ring in Platinum
By Tiffany & Co.
Located in University Place, WA
.’s ability to combine elegance with subtle, expressive detail. Details: Platinum (PT950) Pavé-set
Diamond, Platinum
Tiffany & Co. ETOILE Diamond Band Ring Platinum Size 5.75
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. ETOILE Diamond Band Ring Style: Band Ref. number: 60004786 Metal: Platinum PT950
Diamond, Platinum
Tiffany & Co Platinum Round Diamond Stud Earrings 2.25 tcw GIA
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Classic Stud Round Brilliant Diamond Earrings Style: Prong Set Metal: Platinum
Diamond, Platinum
Tiffany & Co. Jazz Pear & Round Diamond Platinum Drop Pendant Necklace
By Tiffany & Co.
Located in University Place, WA
with a spring ring clasp. Details: Platinum (PT950) Three bezel-set diamonds: pear, round brilliant
Diamond, Platinum
Peter Suchy .10 Carat Diamond Platinum Star Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Peter Suchy workshop. 5 round brilliant cut diamonds, F-G VS approx. .10cts Platinum Stamped: PT 950
Diamond, Platinum
Tiffany & CO. .23 Carat Diamond Platinum Hoop Bangle Bracelet
By Elsa Peretti for Tiffany & Co.
Located in Stamford, CT
. .23cts Platinum Stamped: PT 950 Hallmark: T + Co. Elsa Peretti 65 grams Inside dimension: 2 3/8 Inches x
Diamond, Platinum
2.02 Carat Green Tourmaline Diamond Platinum Dangle Earrings
Located in Stamford, CT
, approx. .03ct each, total weight .18cts, G-H, VS Platinum Tested: Platinum Stamped: Pt 950 Top to bottom
Diamond, Tourmaline, Platinum
CARTIER Platinum Diamond Stud Earrings Rounds 2.05 Carats GIA Certificates
By Cartier
Located in San Diego, CA
: N8515231 Metal: Platinum PT950 TCW: 2.05 tcw Main Diamond: 1. RBD 1.02 G VS1 GIA 6137445147 2
Diamond, Platinum
$3,200Sale Price|20% Off
Vintage 9.54Ct Tanzanite Diamond Ring in Platinum
Located in Hong Kong, HK
regal presence. The band, crafted in 5.96 grams of platinum (PT950), features a split shank design
Diamond, Tanzanite, Yellow Gold, 18k Gold, Platinum
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.