About Cercagems

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So far Cercagems has created 115 blog entries.

Corundum

The most important of the gem families, corundum provides us with two of the best-known stones: ruby and sapphire. The popularity and price of these g

Opal

The opal is the national gemstone of Australia, which produces 97% of the world's supply. The group of fine opals includes a large variation of gemsto

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