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Hallmarking

Our Commitment to Hallmarking

When it comes to manufacturing jewellery and silverware, precious metals (silver, palladium, gold and platinum) are rarely used in their purest form. Instead, they are usually alloyed with lesser metals to achieve a desired strength, durability, and colour.

What is a Hallmark?

It is not possible to detect the precious metal content of an item by sight or by touch. It is, therefore, a legal requirement to have items consisting of silver, palladium, gold or platinum independently tested and then hallmarked before they can be described as such. Items must bear a hallmark at point of sale, subject to the following weight exemptions:

  • Silver: mandatory for items above 7.78 grams;
  • Gold: mandatory for items above 1 gram;
  • Palladium: mandatory for items above 1 gram;
  • Platinum: mandatory for items above 0.5 grams.

How do you ensure that all underweight items which are not hallmarked are the correct standard?

Our un-hallmarked items are periodically tested to ensure they are of the correct standard. These are randomly selected to ensure an accurate test across the board is applied.

Hallmarking at Diamond Heaven

Diamond Heaven is registered with the Birmingham Assay Office, ensuring our precious metal jewellery is compliant with the UK’s hallmarking regulations. All stock is subject to an internal confirmation process to ensure it meets the UK’s hallmarking regulations before it is dispatched to our customers.

More Information on Hallmark Process

We are an Assay Assured Jewellery Retailer. Assay Assured status is only given to retailers who have been independently audited and verified by Assay Assured which is run and overseen by the Edinburgh Assay Office, and ensures that all precious metal jewellery (except items exempt by weight) are independently tested and hallmarked.

Find out what a hallmark looks like here.

Click here to view our Assay Assured Certificate

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Copyright © 2006-2025 Diamond Heaven. All Rights Reserved. Apex Jewellers Ltd – 115 Vyse Street, Hockley, Birmingham, B18 6LP. Registered in England & Wales – 5297666. VAT Registration Number - 824525534. Apex Jewellers Ltd t/as Diamond Heaven is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 731081. Apex Jewellers Ltd t/as Diamond Heaven offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.