Thousands of gold is 99. 99%, it is pure gold. Large gold companies like Liu Fu and Zhou Shengsheng should be around $436 per gram, and they may need to deal with currency. Ordinary gold shops should be around 380.
Platinum. I wonder if you mean platinum? Platinum and Qianzu should be about the same.
K gold is divided into 14K and 18K, and the price of Daikin Bank should be around 14K300 and 18K350.
After buying it, you can go to those recycling shops and pretend to sell it. They will give you a color, and then pretend to ask more company prices to let you know if it is a pit.
Today's international gold price is around 347.