Since gold is real money it doesn’t really have a price but more of an exchange rate with other currencies.
Gold measuring is usually done from 2 points of view:
Purity and Weight
The purity of gold articles may be described in three ways:
Karat, meaning parts of gold per 24.
Percent, meaning parts of gold per 100 .
Fineness, meaning parts of gold per 1,000 (European System) .
The most widely known and used measure unit for gold is the troy ounce. A troy ounce (480 grains) is 31.1034768 grams.
There are many other types of weight systems:
Grams and kilograms (metric system) , tolas , teals and baht.