Jewellery, decoded
The things worth knowing before you buy, wear, or inherit a piece — researched, sourced, and written in plain English. No jargon for its own sake.
Hallmarks of the world
How fourteen jewellery nations mark precious metal — country by country — plus the interactive Hallmark Calculator that cross-references purity between them.
DiamondsThe 4Cs of a diamond
Cut, colour, clarity and carat — diamond quality decoded in plain English, with the GIA grading scales.
MetalsPrecious metals & karat
Gold, silver, platinum and palladium — karat and fineness, the conversion table, gold colours and the silver standards.
CareJewellery care & Mohs
Clean it without ruining it — care by metal and stone, the Mohs hardness scale, and what to keep well away.
A–ZJewellery glossary
The terms you'll meet when buying or inheriting a piece — karat, fineness, the 4Cs, pavé, nacre — defined in plain English and searchable.