Natural Diamond Prices – January 2025
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By Erika W.
Master gemstone cutter and AGTA Cutting Edge Award winner, John Dyer, discusses the importance of quality colored gemstone cutting in the following video. From oversized “windows” to poor polish, Dyer illustrates common problems with colored stone cuts often found in the marketplace. With changes in cutting angles, some poorly cut gemstones can be maximized to better display color and inherent beauty.
14.43 carat pink tourmaline Regal Radiant™ cut by John Dyer. The gem won 2nd place for Flat Faceting at the 2011 AGTA Cutting Edge Awards.
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