This is one of those areas where people stand at each side of the
fence and say
You should do it that way!
No, you SHOULDN’T do it that way!
Everyone is taught differently, I know folks who quench hot
diamonds. It can hurt a stone. 1 in a hundred? But why take the
chance? The only REASON to quench is time and if you work on 2-3
things at once, let it cool.
if it has a feather in the diamond, it can spread if quenched. And
with the all the enhancements done to diamonds (fillings and such)
why tempt fate?
I’d never do that to color and never ever thing about it with
You can heat on stones the color of the American flag Red, White,
Blue Rubies, Sapphires, Diamonds
and they have to be faceted, not cabochon.