New to gemstones? Curious about the different kinds of gemstones? Check out our gemstones list and discover a world of precious and semi-precious stones.
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In modern use, the precious stones are emerald, ruby, sapphire and diamond, with all other gemstones being semi-precious. This distinction reflects the rarity ...
Gems Sensors & Controls is a leading manufacturer of pressure switches & sensors, level switches, flow switches, solenoid valves, and fluidic systems.
For thousands of years, people have used terms like "gem" and "gemstone" to describe objects like rubies and emeralds. However, some find defining a gem ...
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 ...
Partner with us today in transforming the lives of girls and young women who have realized their full potential through more than 25 years of service at GEMS.
Gains in the Education of Mathematics and Science (GEMS) is an U.S. Army-sponsored, summer STEM enrichment program for middle and high school students that ...
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.
Alexandrite is a chrysoberyl gemstone called the “chameleon stone,” known for its color-changing quality and rareness, and wisdom-inducing properties.
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.. All About Diamonds. Diamond A collection of photos, ...