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IGI provides independent grading reports, colored stone reports, identification and appraisal reports, diamond authentication and attestations of origin, and laser inscription services. They also offers diamond and colored stone courses through IGI's Schools of Gemology. The IGI school was the first to offer the practical Rough Diamond course. [4]
While both reports contain a number of measurements, including dimensions, proportions, carat weight, color, and clarity, the Diamond Grading Report also includes a diamond plot (a graphic representation of the position and type of inclusions present in the diamond). Diamond reports from GIA (as well as other, for-profit sources) are now ...
A diamond laboratory, such as GIA, AGS, EGL USA or IGI, certifies larger diamonds, and these diamonds are sold individually, directly to the public or to jewelry retailers and diamond dealers. [6] According to an independent diamond analyst, the global diamond market saw a huge change in the demand for recycled diamonds.
GSI Gemological Laboratory performs a number of services including: loose and mounted diamonds grading; origin testing of loose and mounted diamonds and gemstones; cut grade analysis; light analysis reports; gemstone identification; sorting and screening of melee; treatment identification; laser inscription on diamonds and gemstones; metal engraving; metal inspection; and 360-degree virtual ...
UNITY TOWNSHIP, Pa. (KDKA) — The body of Elizabeth Pollard, the missing 64-year-old woman who fell through a sinkhole while looking for her cat in Unity Township, Pennsylvania, has been found ...
A new study says that air pollution — specifically, the kind caused by car exhaust — may be a significant cause of rising rates of autism in children. Exposure to nitric oxide (NO)— which is ...
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The stone was cut by a team of 35 using computer-controlled lasers into 26 D-flawless diamonds totaling 223.35 carats (44.670 g), the highest yield from a single diamond. [ 17 ] [ 18 ] The Wittelsbach-Graff Diamond is a 31.06-carat (6.212 g) fancy deep-blue diamond with internally flawless clarity purchased by Laurence Graff in 2008 for £16.4 ...
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