Cabochons (cab-o shons) are a flat backed domed stone, that is designed to be stuck into a Cabochon setting to create quick, stylish jewellery. We would recommend that on clear stones you use a clear Epoxy glue, (will dry clear) but for opaque stones, a normal super-glue will be perfect. You only need to use a tiny drop of glue as the flat back will squish the glue flat and if you use too much, the glue will spill up around the sides.