These are beautiful! They can be used as cabochons as they are flat back or you can use them as beads as there are holes in the bottom-please take a look at the 3rd picture.
19.75 /50 = 39.5 cents/ 1 piece.
These are flat back and measure about 18mm wide.
These are good for making handmade jewelry, accessory, strap, key holder and etc.