This is a short tutorial made by gemstone artist John Dyer of johndyergems.com explaining the difference between good faceting and bad gem cutting. Red flags such as windowed or fish eye gemstones, crooked girdles, scratchy poor polish, and facets that don't meet are pointed out and explained.
Visit our website to see gemstone awards, online catalog, history, gem shows, designer gallery and more! johndyergems.com
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