Hi everybody. I don’t know if this idea has been spoken of so far,
but when I set stones, like say something that’s a bit treacherous
to set, I focus on making sure there’s as much equal uniform contact
on the seat as possible. Which is hard to see. So I use a product
called, “Seat Check”. I know Rio Grand carries it, maybe Stuller
Let’s say I’m setting a large faceted emerald in a crown in a custom
design. When I think I’ve got everything dialed in as far as the
stone being set level, straight and such, it is then that I spray
the Seat Check inside the crown area, and then place the stone back
in the crown and press gently down and around. After then stone is
removed, you will find probably a variety of highlighted contact
points the faceted junctuions left behind as they made contact with
the metal. Taking the correct burr, feather down only those
highlighted contact points away. Put stone back in and check fit. it
will likely be more snug in it’s seat. Pull out stone and repeat the
sprayong, place stone back in, press down gently and finger rock
gently to make sure the impression is quality, remove stone and you
will find that the previous highspoty contact points have changed.
Feather only those away with a burr and recheck fitting again.
Do this as often as it takes for you to “see” the improvement of
equal distibution of a flusher fit on the underbezel, and/or better
fitting where the prongs are, because there can be premature contact
points there too.
I try to envision the stone maling a nice flat flush relatively
relaxed scenario. As the porngs come down and load pressure on the
stone, the pressure is then more equally distributed. This makes for
a much safer process, a better end result, and helps the Mind’s Eye
"see" what’s going on under the stone.
This method is just like what the dentist dioes when they try to
make sure that teeth are making proper contact without high spots.
But they use a paper impregnated with powder, have you tap your
teeth a few times, pull out the paper, and they easily “see” the
high points, feather them away, and voila!, perfect uniform contact
minimzing further tooth problems/dangers.
fwiw, I often deal with very valuable stones daily, and with the
bigger stones if I have any doubts with what’s going on, I will use
the Seat Check to make sure I’m as aware as can be with the focused
task at hand.
I don’t know how many years ago I started using a product like this.
maybe 15-20? But ever since I started to use it on scary stones, or
obscenely expensive stones, stone setting damage has pretty much
fwiw, I do not use glue to hold stones in place while setting.
Proper fitting in all regards, is the rule… Proper control of
your tooling, AND proper choice of your tooling is the rule.
of course, gluing pearls on pegs and such, is another matter.