Gary Roskin G.G
From Wikipedia, the free encyclopedia
 |
This article does not cite any references or sources. (August 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. |
Gary Roskin G.G is the Father of diamond grading and the first to document in photographs the Diamond Grading System of G.I.A.
This biographical article about a geologist is a stub. You can help Wikipedia and the Geology WikiProject by expanding it.
