Richard B.and all "Orchidians".
I suppose you meant "burned or burnt" either case if this stone in
question is a large stone 1/4 carat. You gotta do one of two things.
Remove this stone, you can't "fix" while its in the Plat. mount.
Remove it 'gently', contact your friendly "Diamond Polisher" and let
him know that your diamond has to be totally "re-surfaced, or
re-cut". The fees will be determined by the size of the stone. If
the stone in question, is smaller than a .25 cts. buy a new one, cost
for labour will be greater than buying...!!! I cannot quote fees
here! After re-cutting, there will be a discernable weight loss per
stone, depending on th size from .02-.05pts +-!
Re-cut? YES! Each and every facet on the stone has to be re-surfaced
totally! Under close examination with a Gem-Scope or a 10x loupe you
will notice a "fire-scale". This has to be removed! You just cannot
do this yourself.. If you have many stones to re-cut, ask him to give
you a quantity discount..."Gerry, the Cyber-Setter"!