Like a number of other African steel beads, Baule beads are Solid using the misplaced wax approach, and sometimes characteristic Sunlight and moon styles.  Swarovski crystal is widely considered the best optically pure guide crystal available on the market. From the late 1800’s Daniel Swarovski patented a crystal cutting equipment https://stephenqnida.blogdomago.com/30534504/faceted-bead-for-dummies