Your diamond belongs to bare stone. You can't say that its price is less than 10,000 yuan, but you can't estimate its value just by weight, because its color and purity are not clear. The 70,000 yuan diamonds sold by jewelry stores are also low-quality diamonds. If you can be sure that it belongs to the same level as the 70 thousand yuan diamond, it means that your bare stone price is basically the same. I think this stone does not include: diamond cutting costs, non-circulation, non-payment of various taxes and so on. But it is also possible that the actual commercial price of your diamond exceeds 654.38+ 10,000. Finally, I want to say that your diamonds may also belong to industrial diamonds, and their own value is several thousand yuan or even lower.