I’m planning to set the very first stone I’ve ever faceted, a round
brilliant citrine, into a 14K ready-made ring mount from Rio Grande
(Item Number 6241297).
The stone’s diameter is 11.1mm. Rio’s closest size choices are 10mm
Given that I will probably have to refile the notches regardless,
will I achieve a more secure mount by:
Using the 10mm size, spreading the prongs farther apart?
Using the 12mm with prongs bent closer?
One of my concerns is that the stone’s pavilion and culet would drop
too low into the 12mm size, and that correspondingly the prongs would
be too high, and moreover, light refraction would not be optimal.
Any help will be appreciated!