Assay Office Registration
WOOLTON & HEWITT is registered with both the Edinburgh Assay
Office and the London Assay Office, ensuring that all our precious
metal rings and jewellery fully comply with the UK’s hallmarking
regulations. Before any piece is dispatched, it also passes
through our own internal quality checks to confirm that it meets
the the high level of craftsmanship we promise to every customer.
Hallmarks
When it comes to making jewellery, 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 in the UK 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 weight exemptions shown in the chart below.
Learn more about hallmarks from this short video.


GIA Diamond Certification
For our larger diamonds - 0.33ct and above - we provide GIA
certification, giving you absolute confidence in your stone. This
internationally recognised assessment by the Gemological Institute
of America, delivers trusted, precise evaluations of the 4Cs (Cut,
Colour, Clarity, and Carat) and is unmatched in its accuracy and
objectivity. With GIA certification, your diamond’s quality and
value are verified to the highest global standard. For more about
diamond certificates please contact us.