As far as I know, Leofoo is basically a mainland firm. There is an old gold shop in Hong Kong called Chow Tai Fook and another one called Luk Fook Jewellery. The price of decoration money is uniform in Hong Kong (about 420-470/g), but different firms will have different brand fees. Of course, the more expensive the better. One or two grams in Hong Kong is also 50 grams, and one yuan is one tenth of two, which is five grams.