Appearance before and after smoke treatment.
Appearance before and after smoke treatment.
Many varieties of gems besides diamond can be created in the laboratory. Our synthetic gemstone guide covers many examples and explains their…
With so many opal treatments on the market, it’s important to understand the different enhancement processes. Read on to learn how to detect…
What’s the best doublet glue for creating assembled stone jewelry? Learn about the choices as well as tips for making the bond between gemstones…
Take a look at the IGS member survey results for opal polishing. You’ll find recommendations for polishes, laps, and techniques for handling these…
These sixteen famous opals include some of the largest and most beautiful in the world. Learn their fascinating backstories in this article.
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