All glasswing gold jewellery is hallmarked at the london assay office, and stamped with my maker’s mark.


Silver jewellery over 7.78g must legally be hallmarked, whilst lighter pieces can be left unmarked, however if you’d like your silver piece marked but it is under 7.78g, you can discuss this with me during the ordering process - email me for details.


Hallmarking as defined by the London Assay Office

1.1 It is impossible to tell the precious metal content of a metal by touch, feel or colour. Hallmarking is the application of a series of marks to precious metals to indicate the precious metal content. This visible confirmation of the precious metal content helps guard against under-caratting.

1.2. Hallmarking dates back to 1300and represents the oldest form of consumer protection in the United Kingdom. Today, the Hallmarking Act 1973 (and subsequent amendments) requires that all items sold in the United Kingdom and described as being made from gold, silver, platinum or palladium must have a legally recognised hallmark.

1.3. The hallmark is applied by regulated assay offices, which are independent of the trade. This independence ensures that the hallmark acts as a trusted guarantee for both the consumer and the trade. The integrity offered by independent testing is the key reason that hallmarking has endured for over 700 years.

A batch of rings ready to go off to the London Assay Office for Hallmarking

A batch of rings ready to go off to the London Assay Office for Hallmarking