I bought one on February 4th, 65438+ RMB 1090. The black pearl is very beautiful. Let me return it on the 5 th, I dare not stay. Asked a lot of people, taxi drivers don't even know where to buy pearls. Travel agencies and tour guides said that pearls are not a specialty of Hangzhou, and they said that they were 50% off when they were bought. The tour guide said they would get a 30% discount if they bought it. That credit card is simply a small card they made. I think the credibility is too low. If you can, I suggest you return it, because if it's really a good pearl, it's grown in the sea and definitely cultured, which is not worth the price at all, but if it's inconvenient for you, it's not bad to keep it as an ornament for teaching, after all, it's not too expensive.