Swarovski Elements Sew On Stones are loose crystal elements that can be sewn by hand or machine onto any type of textile or accessories. Sew On Stones come in one, two or three hole varieties and cane used for a range of decorative purposes of for fine embroidery. 3257 Divine Rock Sew-on Stones Swarovski Elements is available in sizes: 19x13mm and 27x19mm