Please note you will not receive all cabochons in picture, we ship 24pcs randomly but no duplicated, but if you buy 2 lots, you may get a lot of same materials
Not all of them from same supplier, so thickness is varies.Well polished, sized, shaped, flat on backside, good for setting
We defined each material in description, pls read it compare with the 2nd picture. so you may know what stone you got. If any of them you got is defective or broken in transit, pls contact us for a partial refund or replacement.