Gem Encyclopaedia

Opal

Fireworks. Jellyfish. Galaxies. Lightning. Opal’s shifting play of kaleidoscopic colours is unlike any other gem.

The Facts

Opal’s microscopic arrays of stacked silica spheres diffract light into a blaze of flashing colours. An opal’s colour 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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