So my stone has arrived from whiteflash and it looks great! My question- They send an independant appraiser''s letter of verification with the stone, but now I need to get it set... Do I need to take the loose diamond to an appraiser here first, or can I get it set then appraised as a final item? My concern is that the jewler who has the setting I want is downtown in the LA jewlery district. Very nice man and has been there for years, but what if he accidently (or purposely) switches the diamond as it will be out of my hands for a day a so and isn''t currently insured. Should I worry about this, or am I being nuts?