Gold value of a piece of jewellery
The price of a gold piece pays for the metal, but also for the craft, the design and the brand. This tool isolates the metal's share, at today's price.
The weight is often on the product page or the invoice. Otherwise, a kitchen scale accurate to a tenth of a gram will do.
Price recorded on . You can change it.
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Value of the gold it contains
- Fine gold content
- Metal's share of the price
The rest of the price pays for the craft, the design, any stones, the brand and distribution.
Enter the weight of the piece.
Free, no sign-up. The calculation runs in your browser: nothing you type is sent anywhere.
How it is calculated
Value = weight of the piece × purity × fine gold price. A 5 g piece in 18 carat gold contains 5 × 0.750 = 3.75 g of fine gold.
The price is the gold spot price, recorded every hour from gold-api.com in euros per troy ounce, then converted per gram (a troy ounce weighs 31.1035 g).
The calculation leaves out the other metals in the alloy (silver, copper, palladium) and the stones, whose value is counted separately.
Good to know
- A gold buyer usually pays less than this value, since they keep their costs and margin. Compare several offers before selling.
- Gold jewellery sold in France usually carries a purity hallmark: the eagle's head marks 18 carat gold.
- The weight includes set stones. If they are heavy, subtract their estimated weight, otherwise the value will be overstated.
Ready to choose
Our selection brings together pieces picked by the editors, from houses whose work we follow.
