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Cartier Signet Ring Initial Vintage Platinum Sz 6.75 Square Heavy Band Jewelry
By Cartier
Located in Torrance, CA
& Hallmark: 950 platinum. The ring is hallmarked "PT 950", "Cartier" along with the serial number. The outer
Category

Mid-20th Century Unknown Modern Signet Rings

Materials

Platinum

Peter Suchy 6.41 Carat Marquise Diamond Platinum Flower Earrings
By Peter Suchy
Located in Stamford, CT
, approx. total weight .10cts, F, VS2 – SI1 950 Platinum Tested: Platinum Stamped: Pt 950 Top to bottom
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Platinum

Platinum PT950 Emerald And Diamond Ring
Located in Sydney, NSW
/ 7 US Item weight: 7.12g Hallmarks: PT 950 Era: Contemporary Condition: Excellent - New. All
Category

2010s Band Rings

Materials

Diamond, Emerald, Platinum

Kurt Wayne 3.50 Carat Diamond Platinum Swirl Hoop Earrings
By Kurt Wayne
Located in Stamford, CT
cut diamonds, approx. total weight 3.50cts, E – F, VS1 – VS2 Tested: Platinum Stamped: PT 950 Hallmark
Category

Late 20th Century Hoop Earrings

Materials

Diamond, Platinum

Tiffany Co. Atlas 1.00 Carat Diamond Gold Platinum Necklace
By Tiffany Co.
Located in Stamford, CT
Length: 16 inches 18k yellow gold Platinum 75.8 Grams Tested: 18k Stamped: PT 950 750 Hallmark: C1995
Category

Late 20th Century Choker Necklaces

Materials

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

Peter Suchy .64 Carat Pear Diamond Halo Platinum Slide Pendant Necklace
By Peter Suchy
Located in Stamford, CT
diamonds, approx. total weight .14cts, F, VS 950 Platinum Tested: Platinum Stamped: PT 950 Hallmark: Made
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Platinum

5.05 Carat Round Blue Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
weight .76cts, F – G, VS Size 6.75 and sizable 950 Platinum Tested: Platinum Stamped: PT 950 Hallmark
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

Cartier 0.30ct Diamond Engagement Ring Platinum Sz 5 Estate COA GIA Signed
By Cartier
Located in Torrance, CA
inches), rising 5mm from the finger. Metal & Hallmark: Platinum. The ring is hallmarked "Pt 950" for
Category

21st Century and Contemporary French Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Tiffany Co. GIA Certified Engagement Ring in Platinum with 0.45cts Diamond
By Tiffany Co.
Located in Miami, FL
, the serial numbers and signed, "©TIFFANY & CO. 27930018 0.45 CT PT .950". Collateral: It is
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

.42 Carat Round Brilliant Cut Diamond Platinum Eternity Band Ring
Located in Stamford, CT
sizable Platinum Stamped: PT 950 7.4 Grams Width at top: 3.3mm Height at top: 3.2mm Width at bottom
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, 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 minor
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Platinum

Tiffany Co. Three Stones Earrings Studs In Solid Platinum With 6 Round Diamond
By Tiffany Co.
Located in Miami, FL
for the assay of the platinum and signed, "T&CO PT .950 PAT.NO.6557220". Collateral: They are
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, White Diamond, Platinum

Jean Schlumberger for Tiffany Co. Diamond X Four Row Rope Band Ring Two-Tone
By Jean Schlumberger for Tiffany Co.
Located in Scottsdale, AZ
diameter: 18.25 mm Band Width: 8.61 mm Stamped: Cartier TIFFANY & CO. SCHLUMBERGER 750 PT 950 Condition
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Tiffany Co. Tiffany Forever Polished Platinum Unisex Wedding Band Ring 8.75
By Tiffany Co.
Located in Scottsdale, AZ
Stamped: Tiffany & Co. PT 950 Estate Condition: Very good, professionally cleaned and polished. Some light
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Platinum

Tiffany Co. Tiffany Forever Polished Platinum Unisex Wedding Band Ring
By Tiffany Co.
Located in Scottsdale, AZ
diameter: 22.75 mm Stamped: Tiffany & Co. PT 950 Estate Condition: Excellent, professionally cleaned and
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

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
Category

21st Century and Contemporary Unknown Contemporary Drop Necklaces

Materials

Diamond, Platinum

Tiffany Co Fancy Intense Yellow .86 Ct Pave Diamond Stud Earrings w/Box Papers
By Tiffany Co.
Located in Simpsonville, SC
&Co, PT 950, 750, reference numbers All our measurements are approximate.
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

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
Category

Vintage 1940s Italian Art Deco Tennis Bracelets

Materials

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
Category

Early 20th Century Dangle Earrings

Materials

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
Category

20th Century American Solitaire Rings

Materials

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
Category

21st Century and Contemporary Bangles

Materials

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
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco 1930 Platinum Long Stations Chain Necklace With 1.82 Cts Round Diamonds
Located in Miami, FL
inches (101.60 Cm), (1 meter). Hallmarks: The crab lock is stamped with the hallmark, "PT 950 1.82 CTS
Category

Vintage 1930s American Art Deco Chain Necklaces

Materials

Diamond, White 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
Category

Late 20th Century Dangle Earrings

Materials

Diamond, Platinum

Tiffany Co. Elsa Peretti Diamond and Platinum Cross Pendant Necklace
By Elsa Peretti for Tiffany Co.
Located in Scottsdale, AZ
: 16” Cross width: 13.5 mm Cross length: 16.5 mm Weight: 6.7 grams Stamped: Tiffany & Co. PT 950
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

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
Category

21st Century and Contemporary Link Necklaces

Materials

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
Category

21st Century and Contemporary Dangle Earrings

Materials

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
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, Sapphire, Purple Sapphire, 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
Category

Early 20th Century Engagement Rings

Materials

Aquamarine, Diamond, Ruby, 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
Category

21st Century and Contemporary French Modern Band Rings

Materials

Diamond, White Diamond, Platinum

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
Category

Vintage 1980s American Retro Engagement Rings

Materials

Diamond, Aquamarine, Platinum

Tiffany Co. Three Stone Circlet Diamond Halo Ring in Platinum Size 4.75
By Tiffany Co.
Located in Scottsdale, AZ
Band: 2.59 mm Stamped: Tiffany & Co. PT 950
Category

2010s Unknown Contemporary Three-Stone Rings

Materials

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.
Category

2010s Engagement Rings

Materials

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
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Designer Tiffany Co. Platinum and 18 Karat Fancy Yellow Diamond Halo Ring
By Tiffany Co.
Located in Scottsdale, AZ
. Hallmarked: Tiffany & Co. PT 950 AU 750. The ring is crafted out of platinum and 18K yellow gold. The
Category

21st Century and Contemporary Engagement Rings

Materials

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

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
Category

Early 2000s Unknown Modern Brooches

Materials

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
Category

21st Century and Contemporary American Modernist Stud Earrings

Materials

Diamond, White 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
Category

21st Century and Contemporary Beaded Necklaces

Materials

Platinum

Tiffany Co. 2.16 ct True Cut Radiant Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
. PT 950, 7209**** D2.16ct This exceptional piece comes complete with: Copy of Tiffany & Co. Diamond
Category

2010s American Band Rings

Materials

Diamond, White 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
Category

Late 20th Century Belle Époque Drop Earrings

Materials

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
Category

Mid-20th Century Swiss Wrist Watches

Materials

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
Category

Late 20th Century Engagement Rings

Materials

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
Category

1990s European Retro Stud Earrings

Materials

Diamond, Pearl, Platinum

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
Category

2010s Hong Kong Contemporary Pendant Necklaces

Materials

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
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Sapphire, 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
Category

21st Century and Contemporary Pendant Necklaces

Materials

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
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

1.95 Carat Victorian Royal Deep Blue Natural Platinum Sapphire Pendant Necklace
Located in Stamford, CT
cut diamonds, approx. total weight .10cts, G, VS Platinum 7.8 grams Chain: 16 inches stamped Pt 950
Category

Antique Late 19th Century Pendant Necklaces

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Tiffany Co. Legacy Round .71 Carat Diamond with Halo Engagement Ring 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
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

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
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

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
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co. Sapphire Diamond Cluster Earrings W/ Papers
By Tiffany Co.
Located in Fairfield, CT
2004 is ~$30,000 now however these earrings are no longer in production. Signage: Tiffany Co. PT
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Sapphire, Platinum

Tiffany Co. 1.50 Carat Diamond Platinum Garland Bracelet
By Tiffany Co.
Located in Stamford, CT
known for. 61 round brilliant cut diamonds, F VS approx. 1.05cts Platinum Stamped: PT 950 Hallmark
Category

Late 20th Century Link Bracelets

Materials

Diamond, 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
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, 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
Category

Mid-20th Century European Band Rings

Materials

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
Category

Late 20th Century Engagement Rings

Materials

Diamond, Sapphire, Pink Sapphire, Platinum

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Pt 950 For Sale on 1stDibs

Find the exact pt 950 you’re shopping for in the variety available on 1stDibs. Frequently made of Platinum, 18k Gold and Gold, this item was constructed with great care. As it relates to this specific piece, our collection includes designs that are universally popular, but 4.5 Carat and 5 Carat carat weights, specifically, are sought with frequency. Creating a pt 950 has been a part of the legacy of many jewelers, but those produced by Tiffany Co. and Cartier are consistently popular. A pt 950 can make for a versatile accessory, but a selection from our variety of 12 Diamond versions can add an especially stylish touch. Today, if you’re looking for a brilliant cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and pear cut alternatives. Finding a pt 950 for sale for women should be easy, but there are 14 pieces available to browse for unisex as well as men, too.

How Much is a Pt 950?

Prices for a pt 950 can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $780 and can go as high as $24,860, while this accessory, on average, fetches $1,213.

The Legacy of Diamond in Jewelry Design

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 ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.