Cabochons > Misc Cabs Howlites Cabochons Cabachons Cabs Gems Pretty nice polished loose natural gem stones Possibly Howlite or another stone that could be dyed cut shaped formed not set unset oval cabachon cabochon cabs jewelry gems pieces 13x18mm matched pairs pr Howlites Cabochons Cabachons Cabs Gems http://facetroughgemstones.com/gem-store/product_info.php/products_id/4613