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After his discharge from the Army, Calley married Penny Vick in 1976 and went to work for her father in the jewelry business in Georgia, becoming a certified gemologist. They had one son and later ...
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 ...
The Gemological Institute of America (GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [ 1 ] Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.
For the next few years he worked to promote the need for gemological education and train a new breed of "certified" jewelers. These jewelers would form the foundation of the Gemological Institute of America (GIA), [1] and later the AGS. In its history, the AGS has achieved significant accomplishments within the field of gemology and jewelry.
Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a specific interdisciplinary branch of mineralogy . Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify and evaluate gems.
Gemological Institute of America (GIA) was the first laboratory in America to issue modern diamond reports, [31] and is held in high regard amongst gemologists for its consistent, conservative grading. Diamond High Council (HRD) Official certification laboratory of the Belgian diamond industry, located in Antwerp. [32]
John Sinkankas (1915–2002) was a gemologist, lapidary enthusiast, micromounter and author. He was a fellow of the Mineralogical Society of America. In 1982, he was awarded the "Distinguished Associate Award" from the Gemological Institute of America.
This page was last edited on 27 January 2013, at 12:31 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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