Let me answer you, hehe, all the original crystal stones available in domestic factories have been glued, because some stones are too brittle to touch, and they are immediately glued after being dug up, which is convenient for storage and transportation. However, all the glue can only be poured into the cracks. In other words, the crystal without cracks inside the crystal can't be poured in, and the glass body can't get rid of glue at all, but some glue is poured in more or less, but this is an internationally allowed way to deal with jewelry, so as long as there is not too much glue, it won't be indicated on the certificate, which is why the cracked crystal is cheaper than the glass body, and the more cracks, the cheaper it is. I hope so.