Tiffany & Co. Tiffany 'Forever' Unisex Polished Platinum Wedding Band Ring
By Tiffany & Co.
Located in Scottsdale, AZ
: 4.5 mm Outer diameter: 22.75 mm Stamped: Tiffany & Co. PT 950 Estate Condition: Excellent
Platinum
Tiffany & Co. Jazz Pagoda Diamond Chandelier Drop Pendant Necklace in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
clasp Stamped: Tiffany & Co. PT 950 Weight: 9.3 grams Estate Condition: Excellent, professionally
Diamond, Platinum
$33,590Sale Price|32% Off
Cartier Platinum Destinée Diamond Ring 2.31ct 5.43g
By Cartier
Located in SYDNEY, NSW
: 5.43 grams Engravings/Markings: Signed Cartier Pt 950 51 1.61 60PPPH Size/Measurement: Ring Size K
Diamond, Platinum
Tiffany & Co Wedding Set: Princess Cut Diamond Engagement Ring + Diamond Band
Located in MELBOURNE, AU
setting is bearing a number & weight of diamond: "D.0.35ct" It's stamped PT 950 & hallmarked Total
Diamond, Platinum
A diamond and platinum ring, set with a rectangular shaped emerald
Located in London, GB
14,95 gr (Pt-950) Circa 1960 An elegant cocktail ring of bold architectural design, executed in
Diamond, Emerald, 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
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
Vintage Diamond Solitaire Engagement Ring with a Tiffany & Co. Platinum Setting
By Tiffany & Co.
Located in Philadelphia, PA
(Gemological Appraisal Laboratory) report. Marked to the shank for Tiffany & Co. / PT 950. Simply a wonderful
Diamond, Platinum
Peter Suchy GIA Certified 2.62 Carat Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
sizable 950 Platinum 7.8 grams Tested: Platinum Stamped: PT 950 Width at top: 8.3mm Height at top
Diamond, Sapphire, 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
Tiffany & Co. 4.15 Carat Diamond Platinum Dangle Chandelier Earrings
By Tiffany & Co.
Located in Stamford, CT
Tiffany & Co. at its best. 400 Ideal full cut diamonds F, VVS-VS 4.15cts Platinum 28.2 grams Stamped: PT
Diamond, Platinum
Tiffany & Co. Elsa Peretti Round Diamond Cross Pendant Necklace in Platinum
By Elsa Peretti for Tiffany & Co.
Located in Scottsdale, AZ
Length: 16” Cross width: 13.5 mm Cross length: 16.5 mm Weight: 6.7 grams Stamped: Tiffany & Co. PT
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
Peter Suchy 74.23 Carat Cabochon Aqua Diamond Platinum Dangle Earrings
By Peter Suchy
Located in Stamford, CT
2 Marquise Diamonds, approx. total weight .06cts, H, VS – SI1 Platinum Tested: Platinum Stamped: PT
Aquamarine, Diamond, Platinum
Peter Suchy 2.59 Carat Purple Sapphire Diamond Dangle Platinum Earrings
By Peter Suchy
Located in Stamford, CT
Platinum Tested: Platinum Stamped: PT 950 11.6 grams Top to bottom: 43.48mm or 1.71 inches Width: 17.43mm
Diamond, Sapphire, Purple Sapphire, Platinum
Van Cleef & Arpels Paris Eternity Ring In Platinum With 1.40 Ctw In VVS Diamonds
By Van Cleef & Arpels
Located in Miami, FL
serial numbers and signed, "VAN CLEEF & ARPELS 49 BL22722 PT .950". Collateral: It is accompanied by the
Diamond, White Diamond, Platinum
10.35 Carat Rectangle Aquamarine Ruby Diamond Platinum Engagement Ring
Located in Stamford, CT
diamonds, G VS SI approx. .15cts Size 6.5 and sizable Platinum Stamped: PT 950 8.1 grams Width at top
Aquamarine, Diamond, Ruby, Platinum
$16,356Sale Price|20% Off
T. Foster & Co Aquamarine and Diamond Cluster Platinum Engagement Ring
By T. Foster & Co.
Located in London, GB
. Signed 'T.FOSTER & CO' and stamped PT 950 to the inside of the band. Dimensions: 2.9 x 2.9 x 1cm The
Diamond, Aquamarine, Platinum
Tiffany & Co. 'Together' Double Milgrain Polished Platinum Wedding Band Ring
By Tiffany & Co.
Located in Scottsdale, AZ
Stamped: Tiffany & Co. PT 950 Estate Condition: Very good, professionally cleaned and polished. Very
Platinum
Tiffany & Co. Three Stone Circlet Diamond Halo Ring in Platinum Size 4.75
By Tiffany & Co.
Located in Scottsdale, AZ
: 5.9 grams Natural Diamonds: .55 ctw Width: 7.98 mm Band: 2.59 mm Stamped: Tiffany & Co. PT 950
Diamond, Platinum
Vintage Cartier 1895 GIA Certified 1.24ct Solitaire Ring Set in Platinum
By Cartier
Located in London, England
hallmarked Cartier, Pt 950, 51, with the serial number 62070B. It is accompanied by a GIA certificate.
Platinum
Diamond Solitaire Platinum Ring, circa 1960s
Located in Beverly Hills, CA
, this piece is designed for those who appreciate substantial jewelry with a sleek, vintage flair. The PT
Diamond, Platinum
Tiffany & Co. Novo Platinum 0.95ctw Princess Cut Pave Diamond Engagement Ring
By Tiffany & Co.
Located in Houston, TX
platinum. Engraved with "Pt 950". The "Tiffany & Co." trademark (or hallmark) can also be found on the
Diamond, Platinum
Peter Suchy 1.88 Carat Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
step cut H VS diamonds, Approximate 0.35 carats Size: 6.5 and sizable Platinum Stamped: PT 950 5.6
Diamond, Platinum
TIFFANY & CO Three Stones Earrings Studs Solid Platinum With 6 Round Diamonds
By Tiffany & Co.
Located in Miami, FL
signed, "T&CO TIFFANY & CO. PT .950 PAT. NO. 6557220". Collateral: This pair of Tiffany & Co. earrings
Diamond, White Diamond, Platinum
$4,950
H 0.25 in W 0.88 in L 1 in
Glittering Panda Bear Brooch With Black & White Diamonds Set in Platinum
Located in Palm Beach, FL
for such a compact size. The clip on the reverse side is stamped PT 950, designating platinum. Gross
Diamond, Platinum
GZ Platinum Faceted Bead Mesh Necklace
Located in Stamford, CT
charm never goes unnoticed. 950 Platinum 42.2 grams Tested: 950 Platinum Stamped: Pt 950 Hallmark: GZ
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
Movado Tiffany & Co Platinum Square Hooded Lugs Wristwatch
By Movado
Located in Stamford, CT
) Inside case: PT 950 Platinum Movado Factories Switzerland 048928-497700 Movement: 17 jewels unadjusted
Platinum
Mondera GIA Certified 1.59 Carat Red Spinel Diamond Platinum Engagement Ring
Located in Stamford, CT
Size 6.25 and sizable 950 Platinum Tested: Platinum Stamped: PT 950 Hallmark: Mondera 8.1 grams Width
Diamond, Spinel, Platinum
Tiffany & Co. Etoile Tahitian Pearl Diamond Earrings Platinum
By Tiffany & Co.
Located in London, GB
'T&Co' PT 950 Dimensions Length of drop: 2.5cm The earrings are not accompanied by the original box
Diamond, Pearl, Platinum
$3,880 / set
W 0.45 in D 0.44 in L 0.69 in
A Fabulous Platinum (PT950) Bird Cage Diamond Pendant with Necklace
By TSE
Located in Macau, MO
A "Bird cage" pendant set with diamonds weighing 0.17 carats, mounted in PT 950 platinum . Bird
Diamond, Platinum
Peter Suchy 2.06 Carat Pink Octagonal Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
: Pt 950 8.52mm wide at top 6.60mm high at top 3.12 wide at bottom Please Note, we photograph each
Diamond, Pink Sapphire, Sapphire, Platinum
GIA Certified 3.10 Carat Emerald Diamond Platinum Pendant Necklace
Located in Stamford, CT
: Platinum Stamped: PT 950 Top to bottom: 21.51mm or .85 inch Width: 43.05mm or 1.70 inches Depth: 6.90mm
Diamond, Emerald, Platinum
Floral diamond pendant in platinum PT950 1.60ct
Located in Boca Raton, FL
compliments! Metal: PT 950 (platinum) Center Diamond carat: 1.00ct Center Diamond shape: Round Brilliant
Diamond, Platinum
Harry Winston GIA Certified Engagement Ring in Platinum with Diamond Box Papers
By Harry Winston
Located in Miami, FL
serial numbers and signed, "©HARRY WINSTON 235635 PT .950". Collateral: It is accompanied by the
Diamond, White Diamond, Platinum
Natalie K GIA 2.07 Carat Oval Sapphire Diamond Halo Platinum Engagement Ring
By Natalie K
Located in Stamford, CT
.75cts, F, VS Size 6.75 and sizable Platinum Tested: Platinum Stamped: PT 950 Hallmark: D0.58 D0.75
Diamond, Sapphire, Blue Sapphire, Platinum
Tiffany & Co. Legacy Round .71 Carat Diamond Halo Engagement Ring in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
Width: 1.80 mm Stamped: Tiffany & Co. PT 950 32976913 D 0.71 CT Estate Condition: Excellent
Diamond, Platinum
Tiffany & Co. .73 Carat Round Diamond Platinum Engagement Ring 10 Diamond Band
By Tiffany & Co.
Located in Scottsdale, AZ
Stamped: Tiffany & Co. PT 950 23169495 .73 CT Estate Condition: Very good, professionally cleaned and
Diamond, Platinum
Peter Suchy GIA Certified 1.51 Carat Diamond Sapphire Engagement Platinum Ring
By Peter Suchy
Located in Stamford, CT
Stamped: PT 950 Tested: Platinum Width at top: 9.2mm Height at top: 7.4mm Width at Bottom: 2.1mm Please
Diamond, Sapphire, Platinum
GIA 2.41 Carat Green Blue Oval Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
, VS Size 7 and sizable Platinum 6.5 grams Stamped: Pt 950 Width at top: 7.8mm Height at top: 7mm Width
Blue Sapphire, Diamond, Sapphire, Green Sapphire, Platinum
Peter Suchy GIA 1.02 Round Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
and sizable Platinum 950 Platinum Tested: Platinum Stamped: Pt 950 5.7 grams Width at top: 5.87mm
Diamond, Sapphire, 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
Vintage 1990s Tiffany & Co Platinum Tiffany Together Milgraine Edge Wedding Band
By Tiffany & Co.
Located in Brighton, GB
platinum, this wedding band is stamped with the Tiffany & Co logo and "PT 950" to indicate its high-quality
Platinum
Spark GIA 1.36 Carat Pink Oval Sapphire Diamond Platinum Engagement Ring
By Spark Creations
Located in Stamford, CT
Width at Bottom: 3.18mm 6.3 grams Tested: Platinum Stamped: Pt 950 Hallmark: Spark D0.49 Please
Diamond, Sapphire, Pink Sapphire, Platinum
EGL Certified 1.48 Carat Art Deco Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
top: 7mm Width at Bottom: 3.6mm 8.2 grams Tested: Platinum Stamped: PT 950 Please Note, we photograph
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
Tiffany & Co. Aquamarine Diamond Platinum Stud Earrings
By Tiffany & Co.
Located in Simpsonville, SC
white gold and one is platinum. Dimensions: 0.63" L x 0.5" W Weight: 7.4 g Hallmarks: T&Co., PT 950
Aquamarine, Diamond, Platinum
Tiffany & Co. Forever Semi Eternity Diamond Wedding Band Ring Platinum 4.5
By Tiffany & Co.
Located in Scottsdale, AZ
Ring outer diameter: 18.80 mm Band Width: 2.25 mm Stamped: Tiffany & Co. PT 950 Estate Condition
Diamond, Platinum
Art Deco Inspired Asscher Cut Diamond Ring in Platinum
Located in London, England
gross weight of 3.4 grams. Lastly the band is hallmarked Pt, 950 (for platinum).
Diamond, Platinum
Tiffany & Co. Channel Set Semi Eternity Diamond Wedding Band Ring Platinum 5.25
By Tiffany & Co.
Located in Scottsdale, AZ
. PT 950 Estate Condition: Excellent, professionally cleaned and polished. Appraisal Value: $3,750.00
Diamond, Platinum
0.86 Carat E, VS1 Round Diamond Engagement Ring, Three-Stone Diamond Ring GIA
Located in Honolulu, HI
diamond weight on the ring is 1.24 carats. The ring is stamped "PT 950" "0.86", Hallmarked "ME" & Numbered
Diamond, Platinum
Tiffany & Co. PT950 2.73ctw Cushion Cut Diamond Halo Engagement Ring
By Tiffany & Co.
Located in Houston, TX
. Engraved with "Pt 950". The "Tiffany & Co." trademark (or hallmark) can also be found on the item. In
Diamond, Platinum
Tiffany & Co. Round Brilliant Diamond Solitaire Pendant Necklace in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: 16 inches Stamped: Tiffany & Co. PT 950 Total Weight: 2.300 grams Estate Condition: Very good
Diamond, Platinum
2.56 Carat Diamond Tear Drop South Sea Cultured Pearl Platinum Dangle Earrings
Located in Stamford, CT
950 Platinum Stamped: Pt 950 Tested: 950 Platinum 14.3 grams Top to bottom: 32.15mm or 1.26 inches
Diamond, Pearl, Cultured Pearl, South Sea Pearl, Platinum
Cartier Ballerine GIA Cert .45 F VVS1 Diamond Platinum Engagement Ring Size 4.75
By Cartier
Located in Simpsonville, SC
4.75; 0.22" W Weight: 4.1 g Hallmarks: Cartier, PT 950, French platinum assay marks, maker's mark
Diamond, Platinum
GIA Certified Diamond and Emerald Double Target Ring in Platinum
Located in London, England
approximate 6) but this can be sized upon request for a perfect fit. The ring is hallmarked PT 950 (for
Diamond, Emerald, Platinum
$77,000
W 0.31 in L 0.31 in
GIA Certified 1.55 + 1.51 D Color IF Clarity Diamond Platinum Studs Earrings
Located in Simpsonville, SC
" Diameter Weight: 3.8 g Hallmarks: Pt 950 All our measurements are approximate.
White Diamond, 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.