Old European Cut Diamond Platinum Engagement Ring 9.04 Carats S-T VS2
Located in San Diego, CA
: 5161210547 Metal: Platinum PT950 Size: 6.75 - Sizable Total Carat Weight: 9.04 CTS Diamond Shape: Old
Diamond, Platinum
Tiffany & Co. Round Diamond 1.03 Carat G VS1 Solitaire Ring in Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Solitaire Engagement Ring Style: Classic 6-Prong Solitaire Metal: Platinum PT950
Diamond, Platinum
Classic Tiffany & Co. Platinum, Diamond and Black Onyx Earrings and Pendant Set
By Tiffany & Co.
Located in Palm Beach, FL
(for platinum). The platinum backs are stamped AL PA MECAN PT950. The pendant is stamped T&Co with a
Diamond, Onyx, Platinum
$6,490Sale Price|20% Off
Art Deco style Platinum Diamond and Emerald Cluster Ring, 1.54 ct. Central Stone
Located in Braintree, GB
(EU) Specifications Metal: Platinum (Pt950) Diamonds: Central stone: 1 round brilliant-cut diamond
Diamond, Emerald, Platinum
Tiffany & Co. Lucida 0.48 Carat Diamond and Platinum Engagement Ring Box
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Lucida Serial Number: 23642875 Metal: Platinum PT950 Size: 4.75 - sizable
Diamond, Platinum
0.61 Carat Diamond and 950 Platinum Three-Stone Diamond Eternity Ring
Located in GB
diamond ring in a six claw platinum 950 setting A very good looking ring with bright clear diamonds, this
Diamond, Platinum
1.70 Carat Siam Ruby and 3.02 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 1.70 carat Thai ruby and 3.02 carat diamond, platinum
Diamond, Ruby, Platinum
Peter Suchy 2.18 Carat Sapphire Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
sizable Platinum Stamped: PT950 6.4 grams Width at top: 8.8mm Height at top: 7.8mm Width at bottom: 2.8mm
Diamond, Sapphire, 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
Tiffany & Co. Round Circlet 0.64 Carat G VS Diamond Engagement Ring in Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Circlet Ring Style Number: 165-12-22413201 Metal: Platinum PT950 Ring Size
Diamond, 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
GIA Certified 24.1 Carat Tablet Cut Emerald Diamond Platinum Dangle Earrings
Located in Stamford, CT
approx. .15cts 58 single cut diamonds, G-H VS SI approx. .65cts Platinum Stamped: PT950 11.0 grams Top
Diamond, Emerald, Platinum
GIA Certified 2.17 Carat Periwinkle Blue Sapphire Diamond Platinum Ring
Located in Stamford, CT
a halo crown of marquise diamonds. Platinum setting with round and tapered baguette accent diamonds
Diamond, Sapphire, Blue Sapphire, Platinum
Peter Suchy AGL Certified 1.29 Carat Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Size 8 and sizable Platinum Stamped: PT950 7.1 grams Width at top: 6.3mm Height at top: 7.5mm Width
Diamond, 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
GIA Certified 70.00 Carat Tear Drop Emerald Diamond Platinum Pendant Necklace
Located in Stamford, CT
Platinum Stamped: PT950 6.5 grams Top to bottom: 42.3mm or 1.66 Inches Width: 18.6mm or .73 Inches Depth
Diamond, Emerald, Platinum
$72,000Sale Price|20% Off
Tiffany & Co. 18k Yellow Gold & Platinum Fancy Intense Yellow Diamond Ring
By Tiffany & Co.
Located in Chicago, IL
combination of 18 karat yellow gold and platinum (PT950 / AU750) and centers on a rare Fancy Intense Yellow
Diamond, White Diamond, Yellow Diamond, 18k Gold, Yellow Gold, 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
De Beers 0.68 tcw Forever Pave Round Brilliant Diamond Engagement Ring Platinum
By De Beers
Located in San Diego, CA
De Beers Forever Pave Diamond Engagement Ring Ref. number: A55214 Metal: Platinum PT950 Size: 6
Diamond, Platinum
Peter Suchy GIA Certified 1.54 Carat Sapphire Diamond Platinum Dangle Earrings
By Peter Suchy
Located in Stamford, CT
. Set in classic platinum setting with two baguette accent diamonds. Picked at random tested as natural
Diamond, Sapphire, Pink Sapphire, Platinum
Peter Suchy GIA Certified 2.57 Carat Sapphire Diamond Platinum Pendant Necklace
By Peter Suchy
Located in Stamford, CT
61736465884 1 old mine cushion cut H SI2 diamond, Approximate .53ct Platinum Stamped: PT950 6.6 grams Top to
Diamond, Sapphire, Yellow Sapphire, Platinum
Peter Suchy GIA Certified 1.17 Carat Oval Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Platinum Stamped: PT950 HallmarkL Fana 5.4 grams Width at top: 11.97mm Height at top: 6.38mm Width at
Diamond, Platinum
Tiffany & Co. Round Brilliant 0.30 Carat F VVS Diamond Flower Ring in Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Bezel Set Flower Diamond Ring Metal: Platinum PT950 Size: 6 - sizable Total
Diamond, Platinum
Peter Suchy GIA 2.02 Carat Square Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
6.75 and sizable Platinum Stamped: PT950 Width at top: 8.1mm Height at top: 7.51mm
Diamond, Platinum
Peter Suchy GIA 3.73 Carat White Oval Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
brilliant cut diamonds, H-I SI approx. .5cts Size 6.75 and sizable Platinum Stamped: PT950 7.6 grams Width
Diamond, Sapphire, Blue Sapphire, Platinum
Simon G Halo Diamond Ring Pave Band Cushion 1.31 Carat F VVS1 Platinum
By Simon G Jewelry
Located in San Diego, CA
Metal: Platinum PT950 Size: 5 - Sizable Total Carat Weight: 1.31 TCW Diamond Shape: Cushion Modified
Diamond, Platinum
$22,800Sale Price|20% Off
GIA Certified 1.68 Carat Radiant Cut Diamond Three-Stone Platinum and 18K Gold
Located in Chicago, IL
mounting, combining the strength of platinum (PT950) with the warmth of 18K yellow gold. This combination
Diamond, Yellow Diamond, 18k Gold, Platinum
Peter Suchy GIA 1.08 Carat Diamond Halo Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
diamonds, G-H SI approx. .40cts 2 emerald cut diamonds, G VS approx. .35cts Size 7 and sizable Platinum
Diamond, Platinum
GIA Certified 5.07 Blue Sapphire Diamond Platinum Art Deco Pendant Necklace
Located in Stamford, CT
Platinum Stamped: PT950 13.4 grams Top to bottom: 32.27mm or 1 5/16 Inches Width: 23.5mm of 5/16 Inch
Diamond, Sapphire, Blue Sapphire, Platinum
1.0 Carat Diamond and 950 Platinum Three-Stone Diamond Eternity Ring 3
Located in GB
diamond ring in a four claw platinum 950 setting A very good looking ring with bright clear diamonds
Diamond, Platinum
Tiffany & Co. Full Circle Round Diamond Wedding Band Ring in Platinum 1.00 Carat
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Full Circle Diamond Wedding Band Ring Metal: Platinum PT950 Width: 3 MM
Diamond, Platinum
Heart on Fire Square Dream Cut 0.648 Carat H SI1 Diamond and Platinum Ring
By Hearts On Fire
Located in San Diego, CA
: PLATINUM PT950 Total Carat Weight: 0.648 CT Diamond Shape: SQUARE BRILLIANT DREAM Diamond Color: H
Diamond, Platinum
Platinum GIA 3.03ct No Heat Vivid Pinkish Purple Sapphire w/ Diamond Shank Ring
Located in Montclair, NJ
: 3.03 (approx.) Material: Solid .900+ Platinum (tested) - Stamped PT950 Weight: 4.01 Grams Ring Size
Diamond, Pink Sapphire, Platinum
GIA Certified 4.30 Carat Pink Sapphire Diamond Platinum Dangle Drop Earrings
Located in Stamford, CT
Stamped PT950 and tested Platinum Top to bottom 36mm or 1.41 inches Width 9.2mm or .36 inches Depth 4.5mm
Diamond, Sapphire, Pink Sapphire, Platinum
1950s 2.82 Carat Ceylon Sapphire and 1.95 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage 2.82 carat Ceylon sapphire and 1.80 carat diamond, platinum cocktail ring; part
Diamond, Sapphire, Blue Sapphire, Platinum
Art Deco Inspired Round Diamond Ring with Baguette Shoulders Set in Platinum
Located in London, England
grams. Lastly the band is hallmarked PT950 (for platinum).
Diamond, Platinum
$78,400Sale Price|20% Off
Bvlgari “Dedicata a Venezia” Platinum Diamond Ring
By Bulgari
Located in Chicago, IL
Diamonds totaling 1.96ct, E Color, VS1 Clarity Metal: Platinum (PT950) Finish: Excellent Polish
Diamond, White Diamond, 18k Gold, White Gold
Vintage Harry Winston GIA Certified D-Color Pear Cut Diamond Ring in Platinum
By Harry Winston
Located in London, England
fit. The ring is hallmarked PT950 (for platinum), 0.74 (to indicate the main carat weight), HW, for
Diamond, Platinum
Tiffany & Co. Square Cut Diamond Wedding Band Ring in Platinum 0.39 tcw 2.6 MM
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co. Style: Square cut Diamond Half Circle Band Sku: 22613413 Metal: Platinum PT950 Size
Diamond, Platinum
1.25 Carat Diamond Angel Skin Quartz Sapphire Art Deco Platinum Pendant Necklace
Located in Stamford, CT
Art Deco platinum old mine cut diamond angel skin quartz pendant necklace accented with graduated
Diamond, Quartz, Sapphire, 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"
Diamond, White Diamond, Platinum
Cartier GIA Certified 10.29 Carat I VS2 Emerald Cut Diamond and Platinum Ring
By Cartier
Located in Boston, MA
3/4, stamped with the official "Cartier " hallmark and"PT950" designating platinum material, and
Diamond, Platinum
Exquisite Vintage Blue Nile Platinum Diamond and Ruby 2.75 Carat Engagement Ring
By Blue Nile
Located in New York, NY
deep, vibrant color. Key Features: Metal Type: Luxurious 950 platinum (marked PT950), ensuring a high
Diamond, Ruby, Platinum
Vintage Tiffany & Co. Ruby and Diamond Cluster Ring Set in Gold and Platinum
By Tiffany & Co.
Located in London, England
can be resized for a perfect fit. The ring is lastly stamped Tiffany & Co, PT950 (for platinum), 750
Diamond, Ruby, Gold, Platinum
Harry Winston Garland Cluster Large Diamond Earrings 4.70ct Platinum
By Harry Winston
Located in West Hollywood, CA
Brilliant Diamonds • Metal: Platinum (PT950) • Retail Value: $50,500
Tiffany Round Brilliant Diamonds Platinum Keys Fleur de Lis Key Pendant
By Tiffany & Co.
Located in Guangzhou, CN
featured at the top of the key, a classic heraldic symbol. Materials: Platinum (PT 950). Symbolism: Tiffany
$27,412Sale Price|25% Off
Platinum Pink Red Spinel & Round Diamond Wide Bracelet 82.71 ct No-Heat High
Located in Great Neck, NY
1STdibs page to view the complete suite. Metal: Solid Platinum (PT950) Total Weight: 62.7 grams Gemstone
Diamond, White Diamond, Pink Diamond, Sapphire, Blue Sapphire, Pink Sapp...
Harry Winston Symbols Pear-Shaped 0.48ct Diamond Cross Platinum Pendant Size S
By Harry Winston
Located in Guangzhou, CN
Gemstones: The design features 8 pear-shaped diamonds arranged in a cross symbol. Metal: Platinum (Pt950
GIA 2.53 Carat No Oil Emerald & 5 Carat Diamond Platinum Drop Pendant
Located in Miami, FL
Necklace Metal: Platinum 950 (PT950) Total Weight: 11.20 grams Pendant Dimensions: 0.9 inches wide x 2.15
Diamond, Emerald, Gold, 14k Gold, White Gold
Tiffany Diamond Ladybug Charm Pendant
Located in London, GB
, Clarity: VS Marked: ‘T & Co’ ‘PT 950’ Hallmarked: Yes (Platinum, London, 2008) Box: Plain gift box
Diamond, 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
Cartier Ballerine Round Brilliant Diamond 0.36 tcw FVVS1 Engagement Ring COA GIA
By Cartier
Located in San Diego, CA
: N4197600 Metal: Platinum Pt950 Size: 3.5 TCW: 0.36 tcw Main Diamond: Round Brilliant Diamond 0.33 cts
Diamond, Platinum
Tiffany & Co Round Diamond 0.46 ct E VVS1 18k Yellow Gold & Plat Engagement Ring
By Tiffany & Co.
Located in San Diego, CA
Yellow Gold & Platinum PT950 Size / Measurements: 6.0 - sizable Main Diamond: Round Brilliant Diamond
Diamond, Yellow Gold, Platinum
De Beers 5mm Wedding Band Ring
By De Beers
Located in London, GB
Here we have a classically styled platinum band ring from De Beers. The ring features a smooth
Platinum
Tiffany & Co., 4.04 Carat Round Brilliant Diamond Engagement Ring
By Tiffany & Co.
Located in Chicago, IL
0.67 carat total. Mounted in platinum and expertly crafted in Tiffany & Co. standards, this is the
Diamond, Platinum
Tiffany & Co. Round Brilliant Diamond 1.60 cts D VS2 Engagement Ring PLAT
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Solitaire Engagement Ring Style: Six-Prong Solitaire Metal: Platinum PT950 Size: 5.25
Diamond, Platinum
TIFFANY & CO Round Diamond 1.60 cts G VS2 Solitaire Engagement Ring Certificate
By Tiffany & Co.
Located in San Diego, CA
: 31545102/O02200084 Metal: Platinum. PT950 Size: 6 sizable Main Diamond: Round Brilliant Diamond 1.60 cts
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.