Thanks Rikhavji,
I don’t know how to rejunavate and cleanse them. I have mentioned earlier that my Neelam (blue sapphire) cost me only 3800 INR in 2005 for 3 to 4 carat. It is not even clear and not in proper shape. May be some body ripped me, that’s why this time I am more careful about everything. As I don’t want period like this again in my life.