Tiffany & Co. Legacy Platinum Diamond Pendant Necklace, Circa 2000s
By Tiffany & Co.
Located in Beverly Hills, CA
Tiffany & Co. platinum cushion modified brilliant cut diamond pendant necklace, crafted as an estate Tiffany & Co. chain and pendant set.
Diamond, Platinum
GIA Certified 18.58 Yellow and White Diamond Yellow and White Gold Bracelet
By Shimon's Creations
Located in New York, NY
78 Cushion Modified Brilliant Yellow Diamonds: 17.86 Carats 39 White Round Diamonds: 0.72 Carats Metal: 18K Yellow and White Gold, 23.10 Grams GIA Certificate # 2235908395
White Diamond, Yellow Diamond, 18k Gold, White Gold, Yellow Gold
Tiffany & Co. Rare Large Enchanted Bloom Diamond Key Pendant 2.30ct TDW 44206721
By Tiffany & Co.
Located in Mayfair, London, London
The pendant comprises of an open-work key motif set with one cushion modified brilliant cut diamond, weighing 0.80ct, fancy yellow colour, VVS1 clarity. 6 marquise brilliant cut diam...
Diamond
Natural Emerald Sapphire Ring Size 6.5 14k W Gold 4.95 TCW Certified
By Enrico Kassini
Located in Brooklyn, NY
Stone: Natural Finely Faceted Quality Emerald, White Sapphire Species & Variety: Natural Beryl Emerald/Emerald Stone Cut: Emerald Cut Stone Color: Green Transparency: Transparent...
Emerald, Sapphire, Gold
Natural Emerald and White Sapphire Ring 6.5 14k Y Gold 4.05 TCW Certified
By Enrico Kassini
Located in Brooklyn, NY
Stone: Natural Finely Faceted Quality Emerald, White Sapphire Species & Variety: Beryl Emerald/Emerald Stone Cut: Emerald Cut Stone Color: Green Transparency: Transparent Saturat...
Emerald, Sapphire, Gold, 14k Gold, Yellow Gold
18K YG Pendant Necklace with 0.32ct Round Diamonds Pearls & Smokey Quartz
Located in New York, NY
The pendant showcases a magnificent array of smokey quartz stones in various shapes: an emerald cut, an oval shape, and a cushion modified brilliant cut, creating an eye-catching foc...
Diamond, Pearl, Quartz, 18k Gold, Yellow Gold
14K White Gold, Multi-Gemstone, & Diamond Parrot or Macaw Bird Brooch
Located in Philadelphia, PA
In the form of a parrot or macaw perched atop a large checker board cushion modified brilliant cut natural blue topaz (11.50 Ct±).
Diamond, Yellow Sapphire, Topaz, Tsavorite, Multi-gemstone, 14k Gold, Wh...
GIA Certified 0.57 Carat Diamond White Gold Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: Approximately 5.8 Metal Type: 18 Karat White Gold Weight: 1.8 grams Center Diamond Details GIA CERTIFIED Center Diamond - Certificate # 2185671534 Shape: C...
White Diamond, 18k Gold, White Gold
18k White Gold Statement Ring With 4.10 TCW - Natural Fancy Colored Diamond Main
Located in Ramat Gan, IL
Specifications Main stone: 4.10ct Cushion Modified Brilliant Fancy Intense Yellow Color VS Clarity, with IGI certificate Surrounded by 2.97ct Heart Brilliant Cut Diamond, D-E Color, ...
Diamond, 18k Gold, White Gold
3 Carats Natural Brilliant Cut Apple Green Color Peridot Gemstone for Jewelry
Located in Peshawar, PK
Gemstone Details: Loose Faceted Peridot Weight 3.2 carats Color Vivid Lime Green Dimension 10.1*8.1*5.8 mm Origin Supat valley Pakistan Treatment None Transparency Transparent ...
Peridot
$1,999Sale Price|20% Off
1ct Hexagonal Natural Diamond, Unisex Loose Gemstone, Modern Design
Located in New York, NY
ITEM DESCRIPTION Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1 ct Our Price: $2499.00 A free online appraisal is included upon request.
Diamond
$1,999Sale Price|20% Off
1ct Hexagonal Natural Diamond, Unisex Loose Gemstone, Modern Design
Located in New York, NY
ITEM DESCRIPTION Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1 ct Our Price: $2499.00 A free online appraisal is included upon request.
Diamond
Vintage 14K White Gold Sapphire Diamond Cluster Ring 1.30 Carats
Located in Miami, FL
Metal: 14K White Gold Signature: Signed “JL” Center Stone: Sapphire, approx. 0.88 carats (cushion / modified square cut) Diamonds: 36 round brilliant-cut diamonds, approx. 1.30 carat...
Diamond, Sapphire, 14k Gold, White Gold
GIA Certified 2.42 Carat Purplish Pink Sapphire & Diamond Three Stone Ring
Located in Miami, FL
Product Specifications: Item Type: Three Stone Engagement Ring Metal: Platinum and 18K Yellow Gold Size: 7 Adjustable Total Weight: 6.66 grams Band Style: Plain Shank Certification:...
Diamond, Pink Sapphire, Gold, 18k Gold, Yellow Gold, Platinum
Imperial Green Jadeite Jade Ring with Diamonds
Located in LA, CA
Colored Precious Stone: Jadeite Jade ( A Grade ) Precious Metal: 18K White Gold Ring Shape: Cushion Hollow Back Modified Cabochon Weight: 7.57 grams (gross) Measurements: 14.55 x 14....
Diamond, Jade, 18k Gold
Ravishing 18k Rose Gold Halo Ring w/ 0.84 Carat Natural Diamonds IGI Cert
Located in רמת גן, IL
A gorgeous art deco ring with a dazzling 0.8 carat square cushion modified natural diamond. It has 0.04 carat of side diamonds which add more to its elegance.
Diamond, 18k Gold, Rose Gold
Platinum GIA 10.19ctw Elongated Emerald Cut Sapphire & Diamond Custom Made Ring
Located in Montclair, NJ
Stock Number: MK-190512936 --Sapphire Certification Details:-- Laboratory: GIA Report Type: Sapphire Origin Report GIA Report Number: 2235152785 Shape: Octagonal Cutting Style: Step...
Diamond, Sapphire, Platinum
Ravishing 18k Yellow Gold Halo Ring w/ 2.05 ct Natural Diamonds IGI Cert
Located in רמת גן, IL
A beautiful ring with a dazzling 1.5 carat square cushion modified brilliant natural diamond. It has 0.55 carat of side diamonds which add more to its elegance.
Diamond, 18k Gold, Yellow Gold
AGL Certified No Heat Ceylon Pink Sapphire and Diamond Platinum Floral Brooch
Located in Miami, FL
Details: Item Type: Floral Brooch Pin Metal: Platinum Weight: 13.30 grams Period: Retro (circa 1960) Certificate: AGL 1120688 Center Stones: Type: Natural Pink Sapphire (Ceylon/Sri...
Diamond, Pink Sapphire, Platinum
Peter Suchy GIA Certified 3.25 Carat Diamond Yellow Gold Stud Earrings
By Peter Suchy
Located in Stamford, CT
Designed and crafted in the Peter Suchy workshop. 1 old mine cut diamond , U-V SI2 approx. 1.57cts GIA Certificate # 5202867825 1 cushion modified diamond, N I approx. 1.68cts GIA C...
Diamond, Gold, 18k Gold, Yellow Gold
Diana M. Platinum engagement ring featuring a center 2.01 ct GIA certified
By Diana M. Jewels
Located in New York, NY
Platinum engagement ring featuring a center 2.01 ct GIA certified (I-VS2) cushion modified cut diamond(#15268983) surrounded by 1.50 cts tw of diamonds Diana M. is a leading supplier...
Platinum
William Goldberg 63 Carat Spectacular Diamond Infinity Necklace
By William Goldberg
Located in New York, NY
Designed as a two-row swag of Ashoka [brand name for a round-cornered rectangular modified-brilliant cut], cushion, marquise, circular, pear, rectangular, oval, and heart-shaped diam...
Diamond, Platinum
Vintage 18K Gold and Silver Collet Set Mandarin Garnet Earrings
Located in Venice, CA
The large garnets are approximately five carats each and are modified cushion cuts, with a beautiful elongated rectangular table on the top of the stone.
Mandarin Garnet, 18k Gold, Silver
Tiffany & Co. Legacy 0.66 Carat Cushion Diamond and Platinum Engagement Ring
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Legacy Engagement Ring Style: Cushion Diamond surrounded by bead set diamonds Serial Number: 31025605/O1150332 Metal: Platinum Size: 5.5 Total Carat Weight: 0.66TCW Ma...
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.