What is a Hallmark? | Aspire Diamonds

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HALLMARKING

The Hallmark is the stamp on the inside of the metal confirming its purity. All precious metals sold in the UK require a Hallmark, our jewellery is Hallmarked at the Birmingham Assay Office whose logo is an anchor.

Your jewellery will have three stamps, a makers mark to show who made the piece, a metal purity mark (for example 18ct gold is 750) and the mark of the Assay Office that stamped it.

See the chart for precious metal hallmarks below.