Gem Encyclopedia
Featured Gem
Opal
Fireworks. Jellyfish. Galaxies. Lightning. Opal’s shifting play of kaleidoscopic colors is unlike any other gem.
The Facts
Opal’s microscopic arrays of stacked silica spheres diffract light into a blaze of flashing colors. An opal’s color range and pattern help determine its value.
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Diamond
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum
The Facts
Rubies have always been held in high esteem in Asian countries. They were used to ornament armor of noblemen in India and China.
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