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The perfect blue – Iolite, Topaz, Aquamarine, Kyanite and Tanzanite
Blue gemstones are synonymous with royalty, luxury and, quite frankly, good taste. Sapphire, a gemstone known for its rich velvety…
The Gemmological Association of Australia outlines some of the treatments used to enhance the appearance of emeralds, aquamarines and other…
The Bold and the Beautiful
An introductory guide to the world of coloured gemstones by the International Colored Gemstone Association.