Discover the Mohs Hardness Scale and Chart for Select Gems with this comprehensive guide by the International Gem Society. Explore the world of gemology and enhance your knowledge with valuable information on the hardness of different gemstones.
Looking for standard gem sizes? Check out the Standard Gem Sizes Chart provided by the International Gem Society. Learn about popular cuts and how to estimate gem weight based on size. A valuable resource for gem enthusiasts and professionals.