Search results for:

'by Donald Clark, CSM IMG'

2015 Clark Scholarship

Donald Clark, CSM, posing with some Quartz The International Gem Society (“IGS”) was founded by Donald Clark, CSM with the mission…

A Tribute to Bench Jewelers

…afraid I would swap it with a lower-quality stone. How many 5-ct, heart-shaped diamonds do you think I kept in stock? Donald Clark, CSM IMG Repair…

A View of the Quartzsite Gem Shows

…gem shows listed at the end of Mr. Clark’s article for exact locations, dates, and times. By Donald Clark, CSM IMG 7 minute read These crystals…

Product Review: GL SpectroLite

…prove helpful should you locate one. By Donald Clark, CSM IMG 2 minute read The GL SpectroLite, shown here with a prism spectroscope, an LED light,…

Ready to learn how to identify gems on your own?

Join our mailing list below to download a FREE gem ID checklist tutorial. See what’s inside…

• Discover the 17 practical steps to gemstone identification (even if you’re just getting started with gemology)

• Learn how you can use specific tools to gather data, make observations & arrive at an accurate ID

• Explore a range of gemological tests… not only will you get familiar with the process but also time-saving shortcuts!