The troy ounce (ozt) is a unit of mass (imperial system) used to gauge the weight and therefore the price of precious metals (gold, silver, platinum and palladium) and gemstones.
1 troy ounce = 31.1034768 grams
1 troy ounce = 1.09714286 ounces
1 troy ounce = 0.0685714286 pounds
1 pound = 14.5833333 troy ounce
See Also: Troy Weights