Alexandrite

Alexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl. Its co...

Ametrine

Ametrine is transparent, bicolored quartz with the colors of both amethyst and citrine...

Diamond

What is Diamond?               ...

Emerald

Emeralds are gem-quality specimens of the beryl mineral family with a rich, distinctly green color.T...

Jadeite

Nearly forty years have passed since the crystal structure of diopside (CaMgSirO6) was solved by War...

Sapphire

What Are Fancy Sapphires A fancy sapphire is a gem-quality corundum that is any color...

Pearl

What is the Pearl? Pearls, natural or cultured, are formed when a mollusk produces layers of nacr...

Topaz

 Topaz makes an ideal gem. Good hardness and desirable colors, combined with a relative abunda...

Ruby

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire...

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