HPHT Diamond Treatments
Step 2: Advanced Gemology Lesson 8 Back to syllabus In 1999, General Electric (GE) introduced a new diamond treatment into the jewelry trade. The…
What’s the Difference Between Synthetic, Simulated, and Created Gemstones
Some people make distinctions between different kinds of synthetic or lab-grown gems. In fact, you may even find different definitions of synthetic…
Lab-Grown Diamonds FAQ
Lab-grown diamonds are becoming popular choices for engagement rings and other jewelry purchases. However, you should always know what you’re…
10 Gemstones Rarer than Diamond: The Earth’s Scarcest Treasures
Are you looking for something truly unique for your next jewelry purchase? Explore these ten gemstones that are actually rarer than diamond. How…
Gemstone Polishing Laps and Techniques
No single gemstone polishing method will work for all people or all stones. Our guide will help you choose laps and techniques that work for you.…
Lapidary Tips for Polishing Girdles
What are the best techniques and tools for polishing girdles? Learn how to complete your faceted gems quickly and easily and avoid common errors.…
Gem Cutting Abrasives in Grit, Mesh, and Microns
Using the right gem cutting abrasives is critical for gem cutters. Our grit, mesh, and micron conversion chart will help you choose the correct…
Writing Effective Advertising for Gems and Jewelry
If you’re in the gem and jewelry business, you’ll need to write effective advertising. These techniques will help you succeed.
What Does the GIA Colored Gem Grading Code Mean?
The GIA grading system describes gem color in terms of hue, tone, and saturation. Learn what the abbreviations and numbers of this gem grading code…
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