9K gold is 37.5% pure. Its value per gram is today’s live gold price multiplied by that purity — updated automatically below. 9K is the most common gold standard in the UK, and the lowest purity that can legally be sold as gold there.
| Weight | Value |
|---|---|
| 1g | $51.52 |
| 5g | $257.59 |
| 10g | $515.18 |
| 20g | $1,030.35 |
| 50g | $2,575.88 |
| 100g | $5,151.76 |
Have a specific item to value? Use the Gold Calculator to enter its exact weight, or see the full Gold Karat & Purity Guide to compare against other karats like 10K or 14K.
9K gold is only 37.5% pure gold — the rest is other metals like copper, zinc, or silver alloyed in for strength and cost. 18K gold is 75% pure, so it has exactly twice the gold content per gram, and is worth roughly twice as much.
Yes. 9 karat is the minimum purity that can legally be marketed and stamped as gold in the UK, where it's the most commonly sold jewelry standard. It's real, valuable gold — just lower purity than 14K or 18K.
It depends on the ring's weight — multiply its weight in grams by today's 9K price per gram above, or use the Gold Calculator to enter the exact weight for a precise figure.