A 926 stamp on gold indicates that the piece is 92.6% pure gold. This is similar to the more common gold purity mark of “925”, which refers to sterling silver (92.5% purity).
For gold, the stamp “926” means the item is made of 22 carat gold (since 22 carat gold is 91.67% pure, and 926 is close to this number). The difference could be due to small variations in the exact measurement or alloy composition.
In summary:
- 926 stamp = 92.6% gold purity, which is close to 22k gold.