All the stones are classified as GRADE-A, GRADE-B, GRADE-C depending on the Source of
origin and transparency. The more transparent is the stone, the higher will be the price.
All the Stones either of GRADE-A, GRADE-B, GRADE-C are suitable for Astrological Rings, Pendants, Jewellery and other purpose.
But it is said that, better is the transparency, the more will be the effect of the Stone.