The Swiss Gemmological Institute SSEF has launched a series of free-of-charge, online courses, entitled Understanding Gemstones. The gems currently covered are diamonds, emeralds, pearls, rubies and sapphires.
P.J.Joseph's Weblog On Colored Stones, Diamonds, Gem Identification, Synthetics, Treatments, Imitations, Pearls, Organic Gems, Gem And Jewelry Enterprises, Gem Markets, Watches, Gem History, Books, Comics, Cryptocurrency, Designs, Films, Flowers, Wine, Tea, Coffee, Chocolate, Graphic Novels, New Business Models, Technology, Artificial Intelligence, Robotics, Energy, Education, Environment, Music, Art, Commodities, Travel, Photography, Antiques, Random Thoughts, and Things He Like.
Translate
Showing posts with label Understanding Gemstones. Show all posts
Showing posts with label Understanding Gemstones. Show all posts
Thursday, April 15, 2021
Subscribe to:
Posts (Atom)