Synthetic Ruby, Round, 3,4,5mm, Pack of 14

This Synthetic Ruby set contains approx 14 round cut stones, varying from 3 to 5mm in size. These stones are perfect for adding colour to your Precious Metal Clay designs. Individual packs may vary. Please note, even though these stones are marked as safe to use with metal clay, it is only a guideline under which they have been tested and stand a greater chance of survival. Any time these stones are fired there is a chance that their appearance could be altered or they could become damaged. Do not put these stones in a kiln for longer than 2 hours or at a higher temperature than 1650°F to 899°C.