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Natural Diamonds | Diamond Stone – GIA C Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA
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 History and Lore The story of the modern diamond market really begins on the African continent, with the 1866 discovery of diamonds in Kimberley, South Africa Entrepreneur Cecil Rhodes established De Beers Consolidated Mines Limited 22 years later, in 1888
GIA Diamond Research Whether examining the laboratory-grown diamonds submitted for grading reports, growing CVD diamonds at our research facility in New Jersey, or altering these materials through treatments, GIA is staying at the forefront of characterization and identification of laboratory-grown diamond
Diamond Quality Factors A well-cut diamond displays the beauty consumers expect to see in a diamond A beautiful diamond looks the way it does because of three optical effects: white light reflections called brightness, flashes of color called fire, and areas of light and dark called scintillation
Gemological Institute Of America | All About Gemstones - GIA A Study of the Winston Red: The Smithsonian’s New Fancy Red Diamond Presents the first scientific and historical study conducted on the 2 33 ct Winston Red, the fifth-largest known Fancy red diamond in existence Read More
Diamond Clarity. - GIA 4Cs The clarity of a diamond is based on the size, location, visibility and number of inclusions or blemishes Internal and surface reaching characteristics are called inclusions External features are called blemishes Precise clarity grading is the secret to accurately evaluating a diamond
Home | GIA 4Cs For nearly 100 years, GIA has helped advance the global diamond industry through innovation and education A GIA Diamond Grading Report is more than the standard in diamond evaluation—it is the internationally trusted source for diamond quality reporting by jewelers, museums and auction houses
How to Buy A Diamond - GIA 4Cs With a GIA Diamond Grading Report, you can confidently make your next diamond purchase With an unbiased diamond evaluation, you’re free to focus on its beauty
GIA Diamond Grading Scales: The Universal Measure of Quality - GIA 4Cs The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight