One oval cabochon of jasper or agate, etc., size 30mm x 40mm. The green jasper cabochon shown in the picture on the left by Gary Olson is nice, but other natural semi-precious cabochons of assorted materials are ready to set in a jewelry finding or mounting. The cabochons will be unnamed, perhaps one of a kind that has been purchased over the years from assorted sources. These are nicely polished, calibrated semi-precious gemstone materials.