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a standard ER-11 collet for holding dops
but cobalt spinel has a hardness of 8 and is ideal for use in all times of jewelry
so these didn't make the cut
presumably as an alternative to YAG
Beryl is one of the most classic gem families but it turns out it is rather difficult to grow in the lab
Bullseye Faceted Stones perovskite a standard ER-11 collet forThese are faceted gems cut with a 'bullseye' effect. These stones are cut from laser YAG (Ce+Nd Yttrium Aluminum Garnet). Some of the material we get is zoned, and careful cutting can put a fluorescent pink zone at the tip, giving a cool eye effect under UV. Depending on the exact size of the zone the eye will be bigger or smaller, and it can reflect in really cool ways. YAG has a high hardness of 8. 25 8. 5 and no durability issues. It is ideal for