Hallmarks are small stamps made on items like jewellery pieces that contain precious metals. They identify and categorise the purity of the precious metal used in any given piece. Hallmarking is one of the earliest forms of consumer protection as it provided a way to regulate precious metal content in products that could have otherwise just been base metal disguised with thin plating.
Hallmarked products usually require a certain amount of a given metal to be stamped. Items containing less than one gram of gold, less than 7.78 grams of silver or 0.5 grams of platinum do not legally require a hallmark in the UK.
With all the choice available now to customers it is more important than ever to protect your purchase and ensure that it has been adequately tested and hallmarked. The Diamond Setter jewellery is hallmarked at the London Assay Office.