0.45 carat H VVS Assuming all the cuts are EX, the international transaction price of this diamond should be 8200 yuan.

18K gold, 2.26g value 220 yuan /g *2.26=500 yuan, so the total value is about 8700 yuan.

The 0.4-carat I-J VVS assumes that all the cuts are EX, and the international transaction price of this diamond should be 5440 yuan.

PT950, the value of 3.95g is 360 yuan /g *3.95= 1400 yuan, and the value of 4-cent small broken diamonds is about 150 yuan.

So the total value should be around 7000 yuan.

Obviously you should buy the first one.

The origin of diamonds is not important, but the key is that 4C parameters determine the value.