First, physical gold 1, gold jewelry: gold jewelry can not only preserve value, but also be used for decoration, and many people are happy to buy it. 2. Gold bars: Compared with ornaments, gold bars save casting and design costs, but their liquidity is low. 3. Gold passbook: also known as gold deposit. Investors deposit a certain amount in the usual way of deposit, and banks buy gold for them. You can pay in real money or equivalent cash. 4. Gold deposit certificate: A deposit certificate usually indicates the owner's name, the conditions and procedures for extracting gold, the name and address of the vault where gold is stored, the storage location and quantity, etc. The holder of the certificate of deposit must pay the safekeeping fee. Second, the paper gold "paper gold" transaction is a service provided by the bank. With precious metals as the accounting unit, investors do not need to buy or sell in kind, but invest in gold by bookkeeping. Third, spot gold, that is, international spot gold, also known as London gold T+0 trading form, is traded 24 hours a day from Monday to Friday, buying up and down in both directions. 4. Futures gold: a futures contract with the gold price of the international gold market as the transaction target at a certain time in the future. The profit and loss of investors buying and selling gold futures is measured by the difference between entry and exit, which is the physical delivery after the contract expires. 5. Option gold: refers to the right to standardize the purchase and sale of gold quantity according to the pre-agreed price and term, which is divided into call gold option and put gold option. The cost of buying and selling options is determined by the supply and demand forces of the market.