Each piece of The Stone Lab jewellery has been certified in accordance with the Hallmarking act 1973 and will feature an official Assay Office hallmark.
The Stone Lab jewellery is beautifully crafted in a variety of precious metals such as 9K and 18K white, yellow, and rose gold, as well as platinum.
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.
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 their 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.
The Stone Lab is registered with the Sheffield 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.
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.