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Andrew Sarosi
One of the nation's authorities of colored gemstones, Andrew Sarosi's designs have captivated many world-wide. His incredible contemporary and classic collections can be acquired at Timeless Gems and timelessgems.com.
Gemological Institute of America
Established in 1931, the Gemological Institute of America is the
world's foremost authority on diamonds, colored stones, and pearls.
Renee Newman
Renee Newman's books are used throughout the world as consumer guides, sales training tools, gemology course texts and references for jewelers, buyers and appraisers. Renee is a GIA graduate.
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