How much is the high-purity Graff diamond ring per carat?

At the beginning of 20 15, the price of British shops started at every carat 10w, which is only a rough question. We will give the corresponding quotation according to the difference of each diamond, and the airport can also refund the tax. After seeing his diamonds, I will never look down on others again. His family doesn't do low-end work, and the quality of diamonds is generally good.