Gold Bell Cap for a Large Opal

by Nan
(Arkansas)

Hello I recently purchased a rather large loose opal. Because of its long and narrow form I would like to have it made into a pendant and I have been looking for a gold bell cap to use with it. I have looked online and I have so far only been able to find silver or silver plated bell caps. Any suggestions where I might find a gold one for this beautiful vintage opal? 14k or 18k would be perfect.