Tiffany setting series 6-claw 0.5-cent diamond ring is priced at HK$ 28,000 (RMB, multiplied by 0.78) at the counter in Hong Kong. The price will vary according to the fineness and specific size of the diamond, but it will not be less than HK$ 28,000. 1 carat Tiffany set series 6-claw diamond rings are available at counters in Hong Kong at a price of HK$ 79,300, while the minimum set series diamond rings is 0.25 carat, starting at HK$13,000.
Everything in Hong Kong is super cheap. 100 is about 78 RMB (about the exchange rate at the end of 1 month).