Peter, don’t get discouraged. It takes a lot of practice to do bright
setting and pave. I am taking a class and we are setting tiny little
created rubies 2.5 mm. Even with excellent instruction it is slow
Our wonderful teacher, Bruce McKay, prepared a lot of little brass
pieces with the holes started for us. After taking accurate
measurements of the stone using our digital calipers, we then,learned
to enlarge the pre-drilled holes to the precise size of our stones,
using first a cone burr, and then a setting burr. It was slow going.
Everything went fine, then when it was time to clean up the area
around the stone, I managed to cut off one of the little fingers
(Prongs??). However, all was not lost as Bruce showed us how to
raise another in the same spot. My point is that it takes a lot of
practice to get it right. What is making it difficult for you, is
that you are working with trillions. My suggestion is that, if you
have not already done so, you really master setting round stones
first,–getting the seats cut just right, and then doing the bright
cutting. Then progress to the odd shaped stones.
Instead of working with silver, and then having to discard that
which does not come out right, it might be a good idea to work on
some pieces of brass, or copper, then move on to the silver. I have
some marquise, and trillion CZ’s waiting for me to practice on, but I
will not touch them until I really can do a perfect job with the
little round ones.