Natural Diamonds | Diamond Stone – GIA C
Diamond is the only gem composed of one single element: carbon. Most diamonds formed more than a billion years ago, deep in the earth’s mantle. The human contribution to a diamond’s beauty is a well-executed cut. Clarity grades assess the number, size, relief, and position of inclusions and blemishes. The less color, the higher the grade.
Diamond Description
Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry. Some trace elements can influence its color or crystal shape.
Diamond - Wikipedia
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water.
Diamond (gemstone) - Wikipedia
Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times.
Diamond | Definition, Properties, Color, Applications, & Facts
5 天之前 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.
Gemological Institute Of America | All About Gemstones - GIA
Fancy Color Diamond. Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
Diamond Value, Price, and Jewelry Information - International Gem …
Everything you need to know about diamonds from someone who isn't trying to sell you a diamond. Advise on how to choose a diamond and evaluate the 4Cs.
Diamond Gemstones: History, Meaning, Value & More - Gem …
2020年3月19日 · Diamonds are dazzling, colorless carbon gemstones known for their durability, prestige, and popularity in engagement rings. Come along as we unearth the diamond’s history, meaning, and value!
Diamond - Gemological Institute of America
Most diamonds formed more than a billion years ago! They form about 100 miles (161 kilometers) below the earth’s surface, where the temperature and pressure are just right. Diamonds are the hardest natural material on earth. They stand for fearlessness and invincibility, and are a …
Most Precious Diamonds, - Gemological Institute of America
From the Hope diamond to the Spirit of the Rose, the Taylor Burton and the Lesotho Promise, we are trusted by museums and top auction houses all over the world to grade and research nature’s finest treasures.
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