... ,heart,square,oval shapes custom sizes clear glass cabochon,one side domed,one side flat, can be used in jewelry, ... 35mm square shape cabochons,we have two choice.One is flat base with domed top,the other ... have,we can also produce custom sizes.round glass cabochon:8,10,12,14,15,16,18 ... glass cabochon:13*18mm,18*25mmsquare glass cabochon:12,15,20,25,35mmrectangles glass cabochon:19*38mm,21*31mmheart glass ...