Hi Swarup, yes,some fossils may be.
Diamond you get in south India.
But,it is not possible to test every piece of diamond.
This is not feasible for dealers also.
Diamond testing costs much more than stones.
Thats why,I never go for white diamond.
Let them meet and settle this.
Everybody can make mistakes.
Wish they settle amicably.
Thanx,
Truly,
Amitava