The Colors of Sapphire When you think of sapphires you automatically think of blue gemstone, maybe because sapphire has long been revered by humanity, and associated with the sky and heavens, but the colors of sapphire vary enormously, the only color not found in sapphire is red. this is because the red variety is referred to as ruby. Both sapphire and ruby are the mineral corundum. Blue sapphires can vary from a deep dark blue to a bright vibrant blue. […]
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