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GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s …

Find a GEM dealer near you and connect with your local GEM experts. Choose from hundreds of GEM dealers across the U.S. and Canada.

Discover everything about amethyst gemstones — from their meaning and ... Gem Profile Buying Guide Ametrine

Mar 12, 2026 · Gemstones have attracted humankind since ancient times, and have long been used for jewelry. The prime requisite for a gem is that it must be beautiful. The beauty may lie in colour or lack …

Articles about gemstones written by a GIA Graduate Gemologist. Each article includes photos and information about the gem's physical properties and geologic origin.

Whether for jewelry, collecting, or crystal healing, this gemstone list guides you to the perfect natural gem for your needs. List of gemstones A-Z with pictures

GEM is a sustainable EV that doesn’t sacrifice quality, payload capacity, or the ability to seat up to six people. With zero CO 2 emissions and optional solar panels, GEM enables cities, communities and …

Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.

Now in its 27th year, the Global Entrepreneurship Monitor (GEM) is the world’s most comprehensive study of entrepreneurship. The report is produced through a global collaboration of 53 participating …