Marilyn,
I would stay away from Thaigem; too many horror stories and
exhorbitant shipping costs.
My favorite source for precious and semiprecious gems is Dikra Gem
in NYC. Phone is 800-873-4572 (Ask for David Kramer and tell him I
sent you – he will ask how you found him.)
No connection, just a very satisfied customer.
Karen Goeller
@Karen_Goeller
Hand-crafted artisan jewelry