Gold price · 18k · 75.0% pure
18k gold price per gram today
18k gold is 75% pure. It is the usual standard for fine jewelry in Europe and for high-end watches. Here is what a gram of 18k gold is worth at today’s spot price.
- 18k per gram $103.64 melt value
- Per pennyweight $161.18 1.555 grams
- Per troy ounce $3,223.69 31.1 grams of 18k
- Gold spot $4,298.25 pure, per troy ounce
Prices as of September 15, 2026. Updating to the live gold price…
What is your gold worth?
Enter the weight and purity to see melt value and a typical range of offers.
Weigh stones, clasps and plated parts separately. They add weight but no gold.
Gold price per gram by purity
Melt value of each common purity at today’s spot price. The 18k row is highlighted.
| Purity | Stamp | Per gram | Per dwt | Per troy oz |
|---|---|---|---|---|
| 24k | 999 or 24K | $138.05 | $214.70 | $4,293.95 |
| 22k | 916 or 22K | $126.68 | $197.00 | $3,940.06 |
| 18k | 750 or 18K | $103.64 | $161.18 | $3,223.69 |
| 14k | 585 or 14K | $80.61 | $125.37 | $2,507.31 |
| 10k | 417 or 10K | $57.58 | $89.55 | $1,790.94 |
What common weights of 18k are worth
| Weight | Pure gold | Melt value |
|---|---|---|
| 1 gram | 0.75 g | $103.64 |
| 2 grams | 1.50 g | $207.29 |
| 5 grams | 3.75 g | $518.22 |
| 10 grams | 7.50 g | $1,036.44 |
| 20 grams | 15.00 g | $2,072.88 |
| 1 pennyweight | 1.17 g | $161.18 |
| 10 pennyweight | 11.66 g | $1,611.84 |
| 1 troy ounce | 23.33 g | $3,223.69 |
How the 18k price is worked out
18k gold is 75.0% pure gold by weight, and the rest is other metals such as copper, silver and zinc. So one gram of 18k contains 0.750 grams of pure gold, and its melt value is that amount times the live spot price per gram. The other metals in the alloy aren’t counted, because buyers don’t pay for them.
Where you find 18k gold
Luxury jewelry brands, European jewelers and most gold watch cases use 18k. It is rich in color but still hard enough to wear every day. White gold and rose gold are also sold as 18k, with the color coming from the other 25% of the alloy.
White and rose 18k
The karat measures gold content, not color. 18k white gold and 18k rose gold both contain 75% gold, so they have the same melt value per gram as 18k yellow gold. White gold is often plated with rhodium, which adds nothing to its value.
More gold prices
18k gold price per gram — FAQ
How much is 1 gram of 18k gold worth?
One gram of 18k gold is worth 75.0% of the spot price of a gram of pure gold. The live figure at the top of this page does that math with today’s price. That is its melt value; what you are offered when you sell will be lower.
What does 18k gold look like stamped?
18k gold is usually stamped 750 or 18K. Look inside ring bands, on clasps and near the ends of chains. A stamp is a claim, not a guarantee, so a buyer will still test the piece.
Is 18k gold real gold?
Yes. 18k gold is 75% pure gold mixed with other metals for strength and color. It is solid gold, not plated.
How much will a buyer actually pay for 18k gold?
Less than melt value. Pawn shops and jewelry stores often offer somewhere around 50% to 80% of melt, because they resell to a refiner and keep a margin. Refiners and mail-in buyers that pay by assay usually pay more, often 80% to 95% or better on larger lots. Get the weight and purity yourself first, so you know what the metal is worth before you hear an offer.
How do I weigh jewelry at home?
Use a kitchen or jewelry scale that reads to at least 0.1 gram, and weigh each purity separately, since a 10k chain and an 18k ring are worth very different amounts per gram. Stones, clasps made of other metals and hollow parts filled with resin add weight but no gold, so the melt value of set pieces is lower than the gross weight suggests.