If you’ve ever looked inside a gold ring or chain and noticed numbers like 375, 585, 750 or 916 stamped into the metal, those numbers actually tell you how pure the gold is ✨
Here’s what they mean:
• 375 = 9ct gold • 585 = 14ct gold • 750 = 18ct gold • 916 = 22ct gold
The higher the number, the more pure gold the item contains — which can also affect how much it may be worth when selling.
I put together a full guide explaining UK gold hallmarks, how they work, how to identify real gold, and what the different purity levels mean:
https://www.moonstonegold.co.uk/blog/what-do-gold-hallmarks-mean/
Perfect if you have old jewellery, inherited gold, broken chains, coins or simply want to understand what those tiny stamps actually mean.





