Troy Ounce vs Gram: Gold Weight Conversion
Gold uses troy ounces, jewelry often uses grams, and mixing the two can change your estimate.
The key conversion
One troy ounce of gold equals 31.1035 grams. This is the number used when turning a quoted gold spot price into a gold price per gram.
Why gold uses troy ounces
Precious metals are traditionally priced in troy ounces. Jewelry scales often show grams because grams are easier for small rings, chains, and coins.
How to avoid mistakes
Check whether a buyer quote is based on grams, pennyweights, regular ounces, or troy ounces. Then compare all offers in the same unit.