Under these circumstances my hot glue gun comes out and a put a
dollop of hot glue onto my bench bock and place my ring into that.
It's also a great thing to use when positioning a piece for
photographing. Works great to hold rings upright on a hard surface
and can be trimmed away so it's nearly invisible. I had not thought
of using it for stamping, thanks for the tip. When I'm faced with a
similar challenge like needing to stamp inside a square shank, right
over the corner and not wanting to flatten the outside of the square
edge, I usually make a seat for the ring with GRS thermo-plastic on
my block (Thermo-loc I think they call it). That helps minimize the
As far as the pliers. I had a great pair that I loved. I broke it
and have bought two different new ones and neither is easy to use.
They are almost closed when I start the impression. I end up putting
them in a vise to get enough oomph to create a nice, deep
impression, particularly in harder white golds. I've monkeyed around
with them using spacers and such but they still suck. I end up using
my brass block and hammer usually and stay on the look-out for a
better pair of pliers. I may cross my fingers and order the one that
Dave recommended. Some people collect art, for me it will be
Grobet sells a 'jewelry marking machine' (Stuller 55-2553). I think
this may be what you are referring to Joy. Save your money, that
thing is a weakling that should never have been sold to the public.
The gears strip under what I would consider normal pressure.
Consider yourself warned!