Blue Sapphire (Neelam Stone) is a highly precious, blue colored gemstone of the Corundum mineral family. It is used for Jewelry Making, Tumbling, Cabbing, Polishing, Wire Wrapping etc. An uncut un-shaped gemstone of gem grade is called ‘rough’. It is the stone in its natural form, often found in the ground, just as mother nature made. They are often called raw gems but the proper name is rough.
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