Glittering Panda Bear Brooch With Black & White Diamonds Set in Platinum
Located in Palm Beach, FL
The clip on the reverse side is stamped PT 950, designating platinum. Gross weight 12.65 grams.
Diamond, Platinum
Tiffany & Co Princess Cut Diamond 0.73 Cts Solitaire Platinum Engagement Ring
By Tiffany & Co.
Located in San Diego, CA
Classic Princess Cut Diamond Solitaire Engagement Ring Style: Solitaire 4-Prong Diamond Registration #: 22956515/I04190390 Metal: Platinum PT950 Size: 6 sizable TCW: 0.73 cts M...
Diamond, Platinum
.66 Carat Diamond Blue Sapphire Platinum Pendant Necklace
Located in Stamford, CT
Old mine cut center stone with 8 old mine accent diamonds and 4 kite shaped sapphires on a platinum 16 inch chain. 1 old mine cut diamond, H I approx. .40cts 8 old mine cut diamonds...
Diamond, Sapphire, Blue Sapphire, Platinum
Vintage 6.98 Carat Citrine and 2.54 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
This 1950s citrine ring with diamonds is hallmarked to the interior of the shank with the platinum fineness mark (PT950), in addition to a maker's mark (ADAMEK).
Citrine, Diamond, Platinum
Harry Winston Tryst Single Row Pave Diamond Wedding Band in Platinum
By Harry Winston
Located in San Diego, CA
Harry Winston TRYST Single Row Pave Diamond Wedding Band Style: Band with Diamonds Ref. number: WBDPRD1RTST Metal: PLATINUM PT950 Size: 4 sizable Measurements: 3.3 MM at the wid...
Diamond, Platinum
2.00 Carat Ruby and 1.50 Carat Diamond Platinum Drop Earrings Circa 2000
Located in Jesmond, Newcastle Upon Tyne
The ruby and diamond earrings are hallmarked to the reverser with the platinum mark (PT950) and ruby mark 'Burmese Ruby'; the earrings have been independently tested using state of t...
Diamond, Ruby, Platinum
Tiffany & Co Platinum Diamonds Forever Half Circle Diamonds Band Ring 3mm
By Tiffany & Co.
Located in San Diego, CA
FOREVER Half Circle Diamond Band Ring Style: Half-circle Band Metal: Platinum PT950 Size: 9 sizable Measurements: 3 MM TCW: 0.57 tcw Diamond: 7 Round Brilliant Diamonds Hallma...
Diamond, Platinum
Tiffany & Co. Platinum and Diamond Wedding Band Ring 2.5 MM
By Tiffany & Co.
Located in San Diego, CA
Style: Half Circle Diamond Wedding Band Sku Number: 16183296 Size: 5.5 - sizable Metal: Platinum PT950 Total Carat Weight: 0.24 Cts. Diamond Shape: Round Brilliant Diamond Colo...
Diamond, Platinum
$6,652Sale Price|25% Off
GIA Certified 4.63ct Burma Cabochon Ruby Platinum Engagement Ring
By OGI Ltd
Located in New York, NY
Flanking the magnificent ruby are sparkling baguette diamonds, totaling 0.80 carats, meticulously set to enhance the overall brilliance of the ring. The platinum setting, marked Pt95...
Diamond, Ruby, Platinum
$76,000Sale Price|20% Off
Harry Winston 2.34 Carat Round Brilliant Diamond Platinum Engagement Ring
By Harry Winston
Located in Chicago, IL
The ring is crafted in platinum (PT950), weighs approximately 5.1 grams, and is currently a US size 4.5.
Diamond, Platinum
Tiffany & Co Forever Platinum Diamond Band Ring 3mm Half Circle Shared Prong
By Tiffany & Co.
Located in San Diego, CA
FOREVER Half Circle Diamond Band Ring Style: Half-circle Band Metal: Platinum PT950 Size: 4.75 sizable Measurements: 3mm TCW: 0.57 tcw Diamond: 7 Round Brilliant Diamonds Hall...
Diamond, Platinum
Cartier Love Diamond Platinum 5.5mm Band Ring Size US 4.5 EU 49
By Cartier
Located in Boca Raton, FL
Brand: Cartier Collection/Style: Love Diamond Band Ring Material: Platinum (Pt950) Hallmarks: Cartier Pt950 49 NV7525 Gemstones: Natural diamond approximately 0.05ct Design: Cla...
Diamond, Platinum
Tiffany & Co Platinum Round Diamond 0.91 cts E VVS2 Solitaire Engagement Ring
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Solitaire Diamond Engagement Ring Style: Classic Tiffany Setting Prong Set Solitaire Metal: Platinum Pt950 Size: 4.25 sizable Main Diamond: Round Brilliant Diamond 0...
Diamond, Platinum
Vintage 33.20 Carat Aquamarine 3.59 Carat Diamond and Platinum Pendant
Located in Jesmond, Newcastle Upon Tyne
The clasp to this stunning oval cut aquamarine necklace is hallmarked with the platinum mark (Pt950) and the necklace has been independently tested using state of the art technology ...
Aquamarine, Diamond, Platinum
Tiffany & Co Platinum Round Diamond 0.94 cts F VS1 Solitaire Engagement Ring
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Solitaire Diamond Engagement Ring Style: Classic Tiffany Setting Prong Set Solitaire Metal: Platinum PT950 Size: 6.25 sizable Main Diamond: Round Brilliant Diamond 0...
Diamond, Platinum
Featherstone 6.64 Carat Rectangular Aqua Diamond Platinum Cocktail Ring
Located in Stamford, CT
By New York designer Featherstone. 1 rectangular blue aqua, approx. 6.64cts 150 round diamonds, H-I VS SI approx. 1.00cts Size 7 and sizable Platinum Stamped: PT950 Hallmark: Feat...
Aquamarine, Diamond, Platinum
Vintage Tiffany and Co Knife Edge Ring. Authentic Platinum Wedding Band. T&CO
By Tiffany & Co.
Located in Port Charlotte, FL
Rare Tiffany and Co. Platinum Pt950 Knife Edge Wedding band Details: Size 7.5 2mm wide 2.5grams total.
Platinum
Peter Suchy GIA Certified 2.05 Carat Diamond Platinum Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Peter Suchy 2.05 carat GIA certified round Ideal brilliant cut diamond pendant necklace in platinum. 16 inches long. 1 round brilliant cut diamond L SI, approx. 2.05ct GIA Certific...
Diamond, Platinum
Tiffany & Co. Round Diamond Engagement Ring 1.23 Carat GVS2 Platinum
By Tiffany & Co.
Located in San Diego, CA
Diamond Engagement Ring Style: Six-Prong Classic Tiffany Solitaire Serial Number: 30600398 / N09290099 Metal: Platinum PT950 Size: 6 - sizable Total Carat Weight: 1.23 cts Diam...
Diamond, Platinum
Peter Suchy EGL Certified 2.29 Carats Diamond Platinum Stud Earrings
By Peter Suchy
Located in Stamford, CT
The EGL certificate along with an appraisal is included with the purchase. 1 round brilliant cut diamond, F-G SI3 approx. 1.14cts EGL Certificate # 400145986D 1 round brilliant cut...
Diamond, Platinum
Vintage 1940s 1.29 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
The engagement ring is hallmarked to the interior of the shank with the mark for platinum (PT950). This vintage diamond solitaire ring is supplied with an independent diamond gradin...
Diamond, Platinum
$68,000Sale Price|20% Off
Tiffany & Co. Certified 2 Carat Round Brilliant Diamond Platinum Ring
By Tiffany & Co.
Located in Chicago, IL
The platinum setting is properly hallmarked “Tiffany & Co.” and “Pt950,” confirming its solid platinum construction.
Diamond, White Diamond, Platinum
1950s Cultured Pearl and 1.02 Carat Diamond Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
The ring is hallmarked to the interior of the shank with the mark for platinum (PT950) and maker's mark 'SC'. This vintage 1950s cocktail ring is supplied with an independent diamon...
Diamond, Pearl, Cultured Pearl, Platinum
Hearts On Fire Platinum 0.67ctw Fiery Diamond Classic Solitaire Engagement Ring
By Hearts On Fire
Located in Montclair, NJ
Material: Solid .950 Platinum (tested & Stamped PT950) Weight: 4.88 Grams Ring Size: 6.5 (fitted on finger, we can custom size this ring. please contact us prior to purchase with siz...
Diamond, Platinum
Cosmic ring. 18k and Platinum Rocket Space Planetary theme band.
Located in Port Charlotte, FL
Bespoke one of a kind piece of Jewelry Space Theme Band Band consisting of a rocket, space ship, planets, stars, and moon. 18k Yellow Gold with Platinum PT950 Various color sapphi...
Sapphire, Gold, 18k Gold, Yellow Gold, Platinum
GIA 13.41ctw Natural Green Pear Shaped Emerald Diamond Drop Earrings Platinum
Located in New York, NY
Vintage GIA 13.41ctw Pear Emerald and Diamond drop Earrings in Platinum Fabulous One of a kind Estate Vintage Green Emerald Pear Earrings containing 2 Pear shaped Emeralds, totaling ...
Diamond, Emerald, Platinum
Tiffany & Co Platinum Diamond Engagement Ring Round 0.60 ct I VVS1
By Tiffany & Co.
Located in San Diego, CA
Round Brilliant Diamond with Channel Set Band Engagement Ring Style: Solitaire with Accents Ref. number: 171/17/18942526 Metal: Platinum PT950 Size: 6.5 sizable TCW: 0.83 cts Ma...
Diamond, Platinum
0.23 Carat Emerald 0.75 Carat Diamond Pearl and Platinum Pendant Circa 1935
Located in Jesmond, Newcastle Upon Tyne
This impressive pendant is hallmarked to the reverse of the setting with a platinum mark (PT950) a four-leaf clover mark and the bale bears the French import mark for platinum (maske...
Diamond, Emerald, Pearl, Platinum
$184,000Sale Price|20% Off
Tiffany & Co. Platinum 3.53 Carat Round Cut Diamond Engagement Ring
By Tiffany & Co.
Located in Chicago, IL
Diamond Certificate—100% guaranteeing authenticity It is mounted in Tiffany’s iconic Classic Six-Prong Platinum Setting (Pt950), the most sought-after design for its timeless beaut...
Diamond, White Diamond, Platinum
Peter Suchy 2.59 Carat Purple Sapphire Diamond Dangle Platinum Earrings
By Peter Suchy
Located in Stamford, CT
These spectacular detailed and intricate earrings were designed and crafted in the Peter Suchy Workshop. 1 cushion pinkish purple Sapphire, approx. total weight 1.32cts, SI, GIA ce...
Diamond, Sapphire, Purple Sapphire, Platinum
Peter Suchy GIA Certified 2.62 Carat Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Designed and crafted in the Peter Suchy Workshop. 1 round blue Sapphire, approx. total weight 2.62cts, GIA certificate #5182476143 4 Princess cut Diamonds, approx. total weight ....
Diamond, Sapphire, Platinum
Tiffany & Co Soleste Cushion 1.03 cts G VVS2 Diamond Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Soleste Cushion Diamond Engagement Ring Style: Halo with Bead Set Diamond Band Ref. number: 68800919 Metal: Platinum Pt950 Size: 5 - sizable TCW: 1.36 carats Main Diam...
Diamond, Platinum
$3,200Sale Price|20% Off
Platinum 9.54ct Tanzanite Diamond Halo Ring by Carat Jewellery
Located in Hong Kong, HK
The band, crafted in 5.96 grams of platinum (PT950), features a split shank design adorned with diamond accents for added sparkle and sophistication.
Diamond, Tanzanite, Yellow Gold, 18k Gold, Platinum
Tiffany & Co Soleste Cushion 1.03 cts E VVS1 Diamond Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Soleste Cushion Diamond Engagement Ring Style: Double Halo with Bead Set Diamond Band Ref. number: 28776608 M10040196 Metal: Platinum Pt950 Size: 5.75 sizable Measu...
Diamond, Platinum
Tiffany & Co. Round Diamond Bead Set Half Circle Band Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Diamond Wedding Band Ring Style: Half-Circle Bead Set Metal: Platinum PT950 Size: 5.25 - sizable Measurements: 2.75 MM TCW: 0.27 tcw Main Diamond: 13 Round Brilliant Diamonds ...
Diamond, Platinum
15.00 Carat Geometric Kunzite Diamond Platinum Art Deco Pendant Necklace
Located in Stamford, CT
A joyful stone, kunzite opens and connects the heart with the mind, encouraging communion between the two. 1 freeform geometric faceted pink with needles kunzite, approx. 15.00cts ...
Diamond, Kunzite, Platinum
Peter Suchy .64 Carat Pear Diamond Halo Platinum Slide Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Designed and crafted in the Peter Suchy Workshop. 1 pear shaped diamond, approx. total weight .50cts, H, VS2 14 round diamonds, approx. total weight .14cts, F, VS 950 Platinum Teste...
Diamond, Platinum
Tiffany & Co. Platinum .24 ct D VVS2 Diamond Solitaire Engagement Ring
By Tiffany & Co.
Located in New York, NY
Collection: Tiffany Classic Metal: Platinum (Pt950) Finger Size: 4 (resizable) Weight: 3 grams Hallmarks: © TIFFANY & CO.
Diamond, Platinum
Tiffany & Co. Platinum Forever 4.5 mm Men's Wedding Band Ring Size 9.5 w/recpt
By Tiffany & Co.
Located in New York, NY
Collection: Forever Metal: Platinum (Pt950) Hallmarks: © Tiffany & Co., PT950 Finger Size: 9.5 — resizing at any Tiffany & Co. location worldwide for a small fee Width: 4.4mm Weight:...
Platinum
GIA 1.99 Carat Old Mine Brilliant Cut Diamond Bezel Stud Platinum Earrings
Located in Stamford, CT
Two GIA certified old mine brilliant cut diamonds in simple handmade platinum bezel settings. 1 old mine brilliant cut diamond, approx. total weight 1.00cts, I, SI1, GIA certificate...
Diamond, Platinum
Ritani Eternity Diamond Wedding Band Ring Micro Pave Set in Platinum
By Ritani
Located in San Diego, CA
Ritani Style: Micro Pave Diamond Eternity Band Metal: Platinum PT950 Width: 2.0 MM Size: 4 - Not Sizable Diamond Shape: Round Brilliant Diamond Color & Clarity: G / VS Hallmar...
Diamond, Platinum
Tiffany & Co. Round Diamond Bead Set Half Circle Band Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Diamond Wedding Band Ring Style: Half-Circle Bead Set Metal: Platinum PT950 Size: 4.5 w/ sizing beads - sizable Measurements: 2.50 MM TCW: 0.27 tcw Main Diamond: 13 Round Bril...
Diamond, Platinum
Tiffany & Co. LEGACY 2.02 tc D VS1 Cushion Diamond Halo Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
LEGACY Cushion Diamond Engagement Ring Style: Halo Ref. number: 26455502/l01150031 Metal: Platinum PT950 Size: 6 Total Diamond Weight: 2.02 tcw Main Diamond: Cushion Modified Brilli...
Diamond, Platinum
GIA Certified Henri Daussi 2.35 CT Flawless Diamond Sapphire Platinum Ring
Located in Westport, CT
Additionally, two natural round brilliant cut blue sapphires are set on either side weighing approximately 0.15 CT in total, providing a refined and elegant accent. Mounted in platin...
Diamond, Sapphire, Platinum
Tiffany & Co. Platinum Half Circle Channel-Set Diamond Band Ring Size 4.25
By Tiffany & Co.
Located in New York, NY
Details Brand: Tiffany & Co. Metal: Platinum (Pt950) Hallmarks: © Tiffany & Co., PT950 Size: 4.25 Weight: 3 grams Width: 2.3mm Diamonds: 15 round brilliants, approx. 0.15 ctw Diamond...
Diamond, Platinum
Tiffany & Co. Diamond Ring in 18K Yellow Gold and Platinum
By Tiffany & Co.
Located in Chicago, IL
Elegant and luminous, the ring is expertly crafted with an 18K yellow gold band and platinum (PT950) prongs in the classic Tiffany Setting.
Diamond, Platinum, 18k Gold, Yellow Gold
Tiffany & Co. Legacy Cushion Diamond 1.33 Tcw Halo Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
LEGACY Cushion Diamond Engagement Ring Style: Halo Ref. number: 24971589/J10100317 Metal: Platinum PT950 Size: 6 TCW: 1.33 tcw Main Diamond: Cushion Modified Brilliant Diamond...
Diamond, Platinum
Tiffany & Co Platinum Diamond Engagement Ring Round 3.14 ct I VVS1 Solitaire
By Tiffany & Co.
Located in San Diego, CA
Round Brilliant Diamond Solitaire Engagement Ring Style: 6 - Prong Tiffany Solitaire Ref. number: 162/11/66962121 Metal: Platinum PT950 Size: 6.25 sizable TCW: 3.14 cts Main Dia...
Diamond, Platinum
Tiffany & Co. Round Diamond 0.37 Cts F VVS1 Solitaire Engagement Ring Platinum
By Tiffany & Co.
Located in San Diego, CA
Tiffany Setting Round Diamond Engagement Ring Style: 6 Prong Tiffany Solitaire Ref. number: 28262221 Metal: Platinum PT950 Size: 4.5 sizable Main Diamond: Round Brilliant Diamo...
Diamond, Platinum
Peter Suchy GIA Certified .84 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
GIA certified round Ideal cut center diamond with great brilliance in a platinum three-stone setting with 2 pear shaped side diamonds, in a custom made setting designed and crafted i...
Diamond, Platinum
TIFFANY & CO Platinum Diamond Solitaire Engagement Ring Round 0.42 cts D VS1
By Tiffany & Co.
Located in San Diego, CA
Classic Round Diamond Solitaire Engagement Ring Style: Solitaire Dia. number: 19481263/F11190187 Metal: PLATINUM PT950 Size: 5.5 Sizable Band Width: 1.9 mm Main Diamond: Round...
Diamond, Platinum
Elsa Peretti Tiffany & Co. Round Brilliant Diamond Platinum Swan Ring
By Elsa Peretti for Tiffany & Co.
Located in London, GB
Elsa Peretti Stamped PT950 for platinum From the Elsa Peretti's Swan collection for Tiffany & Co.
Diamond, Platinum
Tiffany & Co Platinum Engagement Ring Round Diamond Solitaire 1.64 cts I VVS1
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Solitaire Diamond Engagement Ring Style: Solitaire 6-Prong Ref. number: 2240****/H1114**** Metal: Platinum Pt950 Size / Measurements: 5.25 - sizable TCW: 1.64 cts ...
Diamond, Platinum
Tiffany & Co Platinum Diamond Engagement Ring Round Solitaire 1.72 cts H VVS2
By Tiffany & Co.
Located in San Diego, CA
Tiffany Setting Engagement Ring Style: Solitaire Ref. number: 35149589 / P12100279 Metal: Platinum PT950 Size: 7 sizable Measurements: 2 mm TCW: 1.72 cts Main Diamond: Round ...
Diamond, Platinum
GIA Certified .54 Carat Light Brown Diamond Platinum Ring
Located in Stamford, CT
Transitional cut GIA certified natural light brown diamond. Vintage inspired platinum open work setting with round diamond accents. 1 round brilliant cut light brown diamond, appro...
Diamond, Brown Diamond, Platinum
Tiffany & Co. Elsa Peretti Diamonds by the Yard 0.37 ct Diamond Pendant Platinum
By Tiffany & Co.
Located in San Diego, CA
Elsa Peretti Diamonds by the Yard Necklace Style: Diamonds by the Yard Ref. number: 34641862 Metal: Platinum PT950 Size / Measurements: Small - 16' Inches TCW: 0.37 cts Main Di...
Diamond, Platinum
Peter Suchy GIA 1.23 Carat Diamond Sapphire Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
GIA certified round center stone set in a pierced, hand engraved platinum 8 sided setting with a bright blue round Sapphire halo and round diamond accents. 1 round diamond, approx....
Diamond, Sapphire, Blue Sapphire, Platinum
Peter Suchy GIA Certified 1.51 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
GIA Certified oval center stone with a halo of round diamonds in a platinum setting. Created in the Peter Suchy Workshop. 1 oval brilliant cut diamond H, VS, approx. 1.51cts GIA Ce...
Diamond, Platinum
Tycoon Cut 2.42 Carat Three-Stone Halo Design Diamond and Platinum Ring
By Tycoon
Located in San Diego, CA
TYCOON CUT DIAMOND Style: 3-Stone Halo Diamond Engagement Ring Serial Number: GIA #13371852 Metal: Platinum PT950 Size: 5.75 - sizable Total Carat Weight: 2.42 TCW Center Diamo...
Diamond, Platinum
Tiffany & Co. Forever Platinum 9-Stone Half Circle Round Diamond Band Ring 2.2mm
By Tiffany & Co.
Located in New York, NY
Collection: Forever Half-Circle Diamond Band Metal: Platinum PT950 Hallmarks: © Tiffany & Co., PT950 Size: 4.75.
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.