Cleaning supplies; Relevant knowledge; Your business card; Mirrors (the more the better ~ my crystal shop has mirrors on three walls); If there are pendants for sale, you can prepare more ropes (for knitting necklaces or mobile phone chains); Put some black or white soft cloth on the table, thicker, and a glass to prevent jewelry from damaging the counter, which can also prevent customers from accidentally dropping jewelry and causing damage. And electronic scales. Maybe you don't need it. I often use it, accurate to 0. 1 gram. I still have vernier calipers at home, hehe, some people have higher requirements, it depends on you. I can't think of anything else I'll use it slowly and think about it later. It is impossible to consider everything at once.