The color of Chow Tai Fook's four-wool diamond ring you mentioned is very poor and yellow. If you don't buy this brand, you will get SI, I-J, while Chiba's 40-point diamond ring, VS, F will be much better. Two I-J's will be compared soon. If you take it with you, others will only see the luster and dazzling of the diamond. Who will ask which brand it is? Why waste money?