According to the market survey, the profit earned by the store will not be too small, and the store rent and publicity money will be shared among all the accessories. At the very least, they will increase the price by more than 2 times (the bigger the diamond, the better the quality, the higher their price).

Nearly 3 grams of gold, 9 minutes of drilling, hydrogen silicon

So I gave a store a conservative price: more than 3000.

If I personally order: 1900 or so.

Private people are cheap because there is no pressure of rent and there is no need to go through all the intermediate expenses. I buy diamonds directly from abroad.