See how big a piece is, what color it is, whether it is cracked or not, and whether it is transparent, so as to judge whether it is worth it. Generally, the prices of wine red, rose red, orange red, rose purple and purplish are from low to high. The more transparent the price, the higher the price, and the less defective black spots. Under the same quality, the bigger the beads, the higher the price. So compare yourself, the round beads of about 6mm burgundy are basically cotton-free and crack-free, and the retail price is10-one in 20 yuan is the market price. It is difficult to be completely cotton-free and crack-free, and there will be some defects. For reference only.