I have a rather similar problem on a much larger scale: I’m
refinishing an antique stone topped table which I guess to date from
about the 1820’s and whose stone top looks like this:
The plates are very closely fitted together side by side, and are set
into a routered-out round marble base with an adhesive which seems to
be something like Canada balsam. The stone plates and the marble base
would presumably have been fitted warm, when the adhesive would be
Whether this will work for your purposes I can’t predict. However, I
do believe that before epoxies, Canada balsam was used in making opal
doublets and triplets; hence it seems to offer enough strength and
permanence for ring and pendant use. It has the advantage that it’s
soft when hot, quite soft, - indeed, it flows - so that would help
with positioning. But it’s slightly brittle when cold so the tighter
the fit-up, the better, probably.
There’s a mosaicist’s web site at
It has a Q & A page where you can post questions to visitors and
review old questions. I posted a query as to my table top about a
month ago, without, as yet, any replies.
I would be curious to hear what you do end up using.
Cheers & good luck Hans Durstling Moncton, Canada Bay of Fundy
geo-guiding; minerals, custom cut agates, faceting, silver &