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
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
Tiffany & Co. Elsa Peretti 15.25 Carat 'Diamonds By The Yard' Necklace, 38" Long
By Elsa Peretti for Tiffany & Co.
Located in Scottsdale, AZ
: Peretti, T&Co., PT 950 Weight: 31.8 grams Estate Condition: Excellent, professionally cleaned and polished
Diamond, Platinum
Tiffany & Co. .81 Carat Total Marquise Diamond Large Victoria Pendant Necklace
By Tiffany & Co.
Located in Scottsdale, AZ
Pendant Width: 10 mm Pendant Length: 10 mm Length: 16" Stamped: Tiffany & Co. PT 950 Estate Condition
Diamond, Platinum
Tiffany & Co. Round Diamond Cross Pendant Necklace Set in Polished Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: Tiffany & Co. PT 950 Chain Stamped: PT950, Japan Necklace Weight: 9.4 grams Estate Condition
Diamond, White Diamond, Platinum
Tiffany & Co. Soleste Cushion Cut Diamond Double Halo Platinum Engagement Ring
By Tiffany & Co.
Located in Scottsdale, AZ
Band Width: 1.8mm - 3.1mm Total Weight: 5.10 grams Stamped: Tiffany & Co. PT 950, 67076370, D1.04 CT
Diamond, Platinum
Tiffany & Co. Victoria 2.27 Carats Total Alternating Diamond Band Ring Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: 5.4 grams Width: 5.8 mm Stamped: T & Co. Pt 950 d2.27ct. Estate Condition: Excellent Condition
Diamond, Platinum
Tiffany & Co. Legacy Pink Sapphire and Diamond Halo Ring in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: .20 ctw Main Ornament: 9.21 mm x 9.49 mm Band: 1.79 mm Stamped: Tiffany & Co. PT 950 PAT 467,833
Diamond, Pink Sapphire, Platinum
$24,500 / set
H 0.24 in L 0.24 in
TIFFANY & CO. Gia Certified 2.01 Cwt D VVS-1 Diamonds Studs Earrings In Platinum
By Tiffany & Co.
Located in Miami, FL
with classic patterns in solid .950/.999 platinum with high polished finish and embellished with two
Diamond, White Diamond, Platinum
Tiffany & Co. 'Tiffany Together' Diamond Milgrain Eternity Band Ring in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: 5.80 grams Band Width: 3.3mm Stamped: Tiffany & Co., PT 950 Estate Condition: Very good
Diamond, Platinum
Baguette and Round Diamond Multi-Row Band Ring in 14K Yellow Gold and Platinum
Located in Scottsdale, AZ
- 11.11mm Stamped: 750, PT 950 Estate Condition: Very good; Professionally cleaned and polished. Minimal
Diamond, Yellow Gold, Platinum, Gold, 14k Gold
Tiffany & Co. Tiffany Forever Round Diamond Semi-Eternity Band Ring in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
1.22mm Ring Size: 4 1/2 Ring Weight: 2.9mm Graduated Band Width: 1.9mm - 2.1mm Stamped: PT 950
Diamond, Platinum
Tiffany & Co. Signed Platinum Wide Plain Wedding Band Ring 15 Grams, Estate
By Tiffany & Co.
Located in New York, NY
anniversary. Get it in time for that special occasion. Material: platinum Hallmark: Tiffany & Co. Pt 950
Platinum
GIA 3.14ctw Estate Vintage Natural Fancy Yellow Radiant Diamond Plat 18k Ring
Located in New York, NY
finger. Finger size 5 easy to re-size, SOLID mounting weights 4.03grams. Hallmarks: Maker's mark, PT
Diamond, 18k Gold, Yellow Gold, Platinum
CHARLES KRYPELL Cocktail Ring In Platinum With 3.60 Ctw In Diamonds & Emeralds
By Charles Krypell
Located in Miami, FL
masterfully crafted with curvilinear patterns in solid .950/.999 platinum with high polished finish. The ring
Diamond, Emerald, White Diamond, Platinum
Fred Paris Fleur Celeste Diamond Platinum Flower Engagement Ring .7 carat E/VS1
By Fred
Located in Simpsonville, SC
, French platinum assay mark (dog's head), Pt 950, 53, reference numbers All our measurements are
White Diamond, Platinum
Antique 1.93 Carat Diamond and Platinum Cross Pendant
Located in Jesmond, Newcastle Upon Tyne
fineness mark (PT 950); the diamond cross pendant and chain have been independently tested using state of
Diamond, Platinum
$12,750
W 1.51 in L 2.05 in
Gubelin 1950 Swiss Post War Brooch in Platinum with 6.42 Cts in VVS Diamonds
By Gubelin
Located in Miami, FL
platinum, the serial numbers and signed in full, "GUBELIN PT.950 382046". Gubelin, was founded in 1854
Diamond, Platinum
Very Fine Deep Vivid Blue 12.76 ct. Tanzanite and Diamond Platinum Necklace
Located in Aspen, CO
excellent condition, this pendant is suspended on a 17 inch platinum chain, which is marked pt. 950 for
Diamond, Tanzanite, Platinum
$14,200Sale Price|20% Off
Very Fine Deep Vivid Blue 12.76 ct. Tanzanite and Diamond Platinum Necklace
Located in Aspen, CO
excellent condition, this pendant is suspended on a 17 inch platinum chain, which is marked pt. 950 for
Diamond, Tanzanite, Platinum
BVLGARI Trombino Cocktail Ring In Platinum With 21.88 Ctw In Diamonds & Sapphire
By Bulgari
Located in Miami, FL
follow, "BVLGARI PT .950 CTS 17.70". Bvlgari The company was founded in the late 19th century by
Diamond, Sapphire, White Diamond, Blue Sapphire, Platinum
$28,950
H 1.54 in W 1.02 in D 0.47 in L 20 in
TIFFANY & CO. Deco Long Platinum Necklace With Ctw In Kunzite And Diamonds
By Tiffany & Co.
Located in Miami, FL
full as follows; "©TIFFANY & CO. PT .950 35354514". Collateral: This Tiffany & Co. kunzite necklace is
Diamond, Kunzite, White Diamond, Platinum
$2,990
W 0.56 in L 0.63 in
Rhapsody AAAA OVAL Tanzanite E-F VS Baguettes Diamonds 3.45ctw Platinum Pendant
Located in New York, NY
premium 950 platinum for lasting beauty and prestige (Stamp: PT 950, RHAPSODY) -Luxurious, durable and
Diamond, Tanzanite, Platinum
Van Cleef & Arpels Tendrement Wedding Band US 6 1/4 Ring Estate
By Van Cleef & Arpels
Located in Torrance, CA
the finger. Metal & Hallmark: 950 platinum. The ring is hallmarked "950 PT" for platinum "VCA
Platinum
Platinum 16.17 ct Opal and Diamond Pendant Necklace
Located in Braintree, GB
Necklace Hallmarks / Marks: Marked 950 PT Opal Cut: Pear-shaped cabochon Quantity: 1 stone Carat Weight
Diamond, Opal, Platinum
Carl Bucherer, Emerald and Diamond Ballerina Ring
By Carl F. Bucherer
Located in Chicago, IL
platinum, this ring is perfect for a party! Ring size: 6 Metal: Platinum Stamp: PT CB 950 Gross weight
Diamond, Emerald, Platinum
Olympus Art Certified, Platinum, MoonStone, Diamond, Unique Art Star Flower Ring
Located in Istanbul, TR
Olympus Art Certified, 950 PT Platinum, 3.12 ct. Diamond Round 23.66 MoonStone Unique Art Piece
Diamond, Moonstone, Platinum
$22,000
W 1 in L 1 in
Plat 1" American Flag Brooch, .85Ct. Diamond, 1.75 Carat Ruby & 1.88Ct. Sapphire
By Cellini
Located in New York, NY
Blue Sapphires 1.88 carats Rubies 1.75 carats Stamped 950 PT
Diamond, Ruby, Blue Sapphire, Platinum
$46,000
H 0.1 in W 0.94 in L 3.16 in
Olympus Art Certified, Unique Art Piece, Diamond, Platinum, ANGEL WINGS Earrings
Located in Istanbul, TR
Olympus Art Certified, 950 PT Platinum, 1.87 ct. Diamond Round, 3.97 ct. Diamond Round, Unique
Diamond, Platinum
$16,640Sale Price|20% Off
Tiffany & Co. Elsa Peretti Platinum Open Heart Diamond Necklace 2 Carat 17"
By Elsa Peretti for Tiffany & Co.
Located in Chicago, IL
Elsa Peretti with 950 Pt hallmarks, this statement necklace exemplifies modern elegance. It remains in
Diamond, Platinum
Platinum Fancy Cut Oval 6.70 Ct. Citrine and Accent Diamond Ring
Located in New York, NY
: 11.5 x 22 x 10 mm Ring Size: 7.5 Metal: Platinum Hallmark: 950 Pt, 12PT ITEM #: BR-1474-121124-16
Citrine, Diamond, Platinum
Platinum and 18 Carat Yellow Gold Franco Link Chain Bracelet
Located in London, GB
ring clasp, measures 7" in length and weighs 22.3 grams. Stamped 750 and 950 PT.
Gold, Platinum, 18k Gold, Yellow Gold
Platinum 0.83 Carat Diamond Engagement Ring
Located in New York, NY
) , surrounding diamonds approx. 10 setting diamonds . Measures - size 7, ring top is 6.3mm wide. Marked 950 Pt
Diamond, Platinum
Peter Suchy EGL Certified 1.01 Carat Diamond Engraved Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
round diamonds approx. total weight .62cts, F, VS. Size 7 and sizable Platinum Stamped: 950 Pt. 6.2
Diamond, Platinum
Platinum and Princess Diamond Wedding Band Ring
Located in Washington Depot, CT
: 950 PT Very good condition, professionally polished. Will come packaged in a gift box or pouch (when
Diamond, Platinum
$15,800Sale Price|35% Off
20.57 carat Brazilian Aquamarine White Diamond Platinum Ring, Erich Zimmermann
By Erich Zimmermann
Located in Dallas, TX
950 PT with the artist's signature hallmarks. About the Maker - Erich Zimmermann obtained the title
Diamond, White Diamond, Aquamarine, Multi-gemstone, Platinum
$2,963
H 1.19 in W 0.16 in L 1.19 in
Biegel Frankfurt, platinum with 18 kt. gold stud solitaire diamond earrings
Located in AMSTERDAM, NL
from 18 kt yellow gold and platina. Signed 750 Biegel, 950 PT. Weight:19 gram Diamonds :0.25*2 =0.50 G
Diamond, Gold, Platinum
AGL Certified 4.11 Carat Green Tourmaline Diamond Halo Platinum Cocktail Ring
Located in Stamford, CT
. total weight 1.00cts, F, VS1 to VS2 Size 6 and sizable Platinum 950 Stamped: PT 900 Tested: Platinum
Diamond, Tourmaline, Platinum
Cartier 'Solitaire 1895' Diamond Engagement Ring, Platinum 0.51 Carat
By Cartier
Located in London, GB
eternity band. The stone is estimated by ourselves as a F colour and VVS2 clarity. Signed "Cartier" 950
Diamond, Platinum
Diamond Circle Bow Necklace in Platinum
Located in Honolulu, HI
" chain with a spring ring closure. The necklace measures 29 mm in diameter. Stamped "950 PT" on the chain
Diamond, Platinum
$9,485
W 0.2 in Dm 7.25 in
Henrich & Denzel Bauhaus Bracelet in Platinum with 1.20 Ctw of VVS Diamonds
Located in Miami, FL
Henrich & Denzel, the platinum assay mark and signed, "HD TWIF .950 PT". Henrich & Denzel is a German
Diamond, White Diamond, Platinum
$8,985
H 0.24 in L 7 in
Henrich & Denzel Germany Bauhaus Bangle Platinum 24 Kt Gold Inlaid 1.20 Diamonds
Located in Miami, FL
maker's monogram HD for Henrich & Denzel, the platinum assay mark and signed, "HD TWIF .950 PT AU
Diamond, White Diamond, Gold, 24k Gold, Yellow Gold, Platinum
Audemars Piguet Platinum Manual Wind Wristwatch
By Audemars Piguet
Located in Stamford, CT
: Original Platinum color Audemars Piguet, very minor spots at 5:30 Inside case: Audemars Piguet Swiss 950 PT
Platinum
Tiffany & Co .95 Carat Diamond Platinum Rose Gold Heart Lock Pendant Necklace
By Tiffany & Co.
Located in Stamford, CT
, G VS approx. .95cts Platinum 18k rose gold Stamped: PT 950 AU750 Hallmark: Tiffany & Co 11.8 grams
Diamond, Gold, 18k Gold, Rose 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.