Thailand's Jin Cheng color is insufficient, so it is blue, Hong Kong is sufficient and yellow. Generally, Thai gold will be cheaper, but it is generally easier to reject in China. The price of gold is so high now, it seems not very cost -effective to buy gold
Thai specialty ruby, gold has never heard of it. Gold prices are changing according to the exchange rate every day, but about 320 yuan.
Thailand's Jin Cheng color is insufficient, so it is blue, Hong Kong is sufficient and yellow. Generally, Thai gold will be cheaper, but it is generally easier to reject in China. The price of gold is so high now, it seems not very cost -effective to buy gold