What is Hallmarking?
Precious metals are rarely used in their purest form, but are usually alloyed with other metals for the properties, such as durability, workability and flexibility, needed to produce a desirable jewellery article. It isn’t possible to detect an article’s precious metal content by sight or touch. Therefore, it's a legal requirement in the UK to hallmark any item described as gold, silver, platinum or palladium by an independent Assay Office. The hallmark guarantees the precious metal content of the item you’re buying, giving you complete reassurance. A Full UK Traditional Hallmark comprises three compulsory marks and two optional marks:
1. Sponsor's Mark (compulsory):
This is the registered mark of the company that submitted the article for hallmarking. The Sponsor will have chosen their shield and the initials which are displayed within it.