TRADE -ALERTS

1997 GEMS & GEMOLOGY Fall pg. 221-222Lab Alert: Radioactive cat’s-eye chrysoberyls 

1997 Asia Precious, 5. 12. Pg. 18-19Radioactive cat’s-eye warning

1998 Professional Jeweler: RADIOACTIVE GEM ALERT!

2007 JCK MAGAZINE July 20 – Alert: Topaz with Unstable Color

2015 OpalholicsAnonymous.com: Trade Alert on Zultanite

2016 CIBJO GEMMOLOGICAL COMMISSION pg. 82Radioactive cat’s-eye warning

2017 Journal of Gemmology 35 / 7 / pg. 571: Color-Change Glass Sold As Natural Garnet Rough