I have a client who wants a four Cwt quarter inch cube rough diamond
crystal (i.e… 6mm square) set in a large pendant He doesn’t want any
prongs, and wants to show as much of the cube as possible. I can only
think of gluing it into a cup bezel, but hate the thought of that as
I am concerned about the safety. I have heard of a glue called “Crazy
Glue” which is very reliable. Does anyone know where this can be
obtained, and is it available (or something similar) in Australia? Also
I assume that if I solder something in place over the diamond, there
is a chance that the crystal could shatter. <<
Since he wants to display as much of the stone as possible without
using prongs you might try the following. This assumes the stone is a
cube as you’ve stated.
Mount the stone between 2 cups at opposing corners of the crystal. A
line from one corner to the other would go from the front right hand
corner of the top face to the rear left corner of the bottom face.
The support for the ‘cups’ could be posts that emanate from a back
plate of polished metal. It could also be supported in the center of a
circle made from wire. However this presents a security problem for
the stone unless the circle is very stiff & resists being elongated
releasing the pressure holding the stone.
If it were me, I’d stay away from any kind of ‘glue’. Crazy glue
isn’t very shock resistant. An inadvertent bang against something
solid could cause a crazy glue bond to separate. That’s a technique
that is sometimes used to remove cut stones that have be affixed to
dops with crazy glue.