There are several possibilities to invest in gold, and you should first take into account the following factors:
Gold is quoted in dollars, so those who invest in this raw material are immediately exposed to currency risk.
The troy ounce is the unit of measurement. It corresponds to 31.1035 grams.
Gold is traded on a number of stock exchanges, notably the Comex (United States), London Stock Exchange (United Kingdom) and Shanghai Futures Exchange (China).
The raw material trades in the futures market (for delivery on a predetermined date) and also in the spot market (spot, for immediate entry). The quotes can be consulted on the websites of the specialty and the exchanges where it is transacted.
The World Gold Council website is one of the best sources to deepen knowledge about gold.