London Blue Topaz Rough Material
London Blue Topaz is the deepest of the topaz family colors. It forms a truly deep ocean blue that can sparkle as much as a Fancy blue diamond.
Topaz is a popular stone as it is easily available and relatively hard (Mohs scale rating of 8).
Gem Stone Co, stocks a variety of London Blue Topaz in all shape and sizes from 1mm to 100mm in raw material, preform and cut stone.
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