UK Gold Hallmarks Guide - How to Identify Your Gold's Purity

Learn how to read UK gold hallmarks and identify the karat and purity of your gold jewellery. This comprehensive guide covers all UK hallmark symbols, fineness marks, and what they mean for your gold's value.

Common UK Gold Hallmarks

375 - 9ct gold (37.5% pure gold)
585 - 14ct gold (58.5% pure gold)
750 - 18ct gold (75% pure gold)
916 - 22ct gold (91.6% pure gold)
999 - 24ct gold (99.9% pure gold)

UK Assay Office Marks

UK gold is hallmarked at one of four assay offices: London (leopard's head), Birmingham (anchor), Sheffield (rose), and Edinburgh (castle). These marks confirm the gold has been independently tested and verified.