Diamond - Wikipedia
Learn about diamonds, one of the most precious and valuable gemstones in the world, formed deep within the Earth's mantle under intense heat and pressure. Find out how diamonds are formed, their physical and optical properties, their uses, their distribution, and their exploration and mining.
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Diamond is a solid form of pure carbon with its atoms arranged in a crystal. Solid carbon comes in different forms known as allotropes depending on the type of chemical bond. The two most common allotropes of pure carbon are diamond and graphite.
Diamond | Definition, Properties, Color, Applications, & Facts
Learn about diamond's unique chemical composition, crystal structure, and formation process that make it a rare and valuable gem. Find out why diamond is the birthstone for April and the gem for special anniversaries.
Natural Diamonds | Diamond Stone - GIA C
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Diamond (gemstone) - Wikipedia
Learn how to buy a diamond with GIA's comprehensive guides to the 4Cs of diamond quality (color, clarity, cut and carat weight) and the terminology of engagement rings. Download a PDF guide to understanding diamond quality, or explore the online resources for more information on white, yellow and rose gold, pink diamonds and other options.
Diamond: A gem mineral with properties for industrial use - Geology.com
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Diamond Value, Price, and Jewelry Information - International Gem Society
Diamond & Co. Products are perfect for jewelry enthusiasts, for daily wear, and even as gifts for loved ones. Tampil Beda di Hari Valentine, Ini Perhiasan Berlian yang Wajib Kamu Miliki! Perhiasan berlian selalu mampu menyempurnakan gaya jadi lebih feminine dan makin stylish.
Diamond Description - All About Gemstones - GIA
Learn everything about diamond, the hardest and most valuable gemstone on earth. Explore its formation, properties, treatments, synthetics, imitations, 4Cs, and research from GIA.
The Complete GIA Guides to Buying Diamonds | 4Cs of Diamond ... - GIA 4Cs
Learn the 4Cs of diamond quality (cut, color, clarity and carat) and how to buy a diamond in-store or online. Find a GIA-trained retailer and get a GIA Diamond Grading Report for your purchase.
Diamond History and Lore - All About Gemstones - GIA
Explore Tiffany diamonds, a showcase for expert cuts and astonishing beauty. Find diamond rings, bracelets, necklaces and earrings for every occasion and style at Tiffany & Co.