We are dealers specializing in world class independently graded American Gemological Laboratories (AGL) Burma ruby and sapphire, Burma spinel, Colombian emerald, collector gems and Gemological Institute of America (GIA) graded fancy colored diamonds. Robert Genis is the President of National Gemstone, which was founded in 1982. Robert has over 30 years experience in the field. He is frequently quoted in the national gem press, and has written numerous articles on gem collecting. He is also the editor of The Gemstone Forecaster newsletter and was the colored gemstone editor for the Rapaport Diamond Report from 1997-2007. NGC has been recognized and recommended as a reputable dealer by PreciouStones Newsletter, The Gem Market Reporter, Wealth, Personal Finance Newsletter, The Retirement Letter and The Dow Jones-Irwin Guide to Fine Gems and Jewelry.

Address: P.O. Box 42468 - Tucson, AZ USA 85733
Telephone: 1-800-458-6453 or 1-520-577-6222
Website: http://www.preciousgemstones.com/