All our cufflinks that are above the legal hallmarking weight will contain a UK hallmark. This limit is 7.78g for sterling silver and 1g for 9ct gold. You may also see other marks such as .925, or .375. These all relate to the metal purity - they aren't a hall mark as such, but simply show the purity of the metal. '375' is found on some 9ct Gold items and refers to '37.5% pure gold' - the definition of 9ct Gold. '925' is found on on some sterling silver cufflinks and refers to '92.5% pure silver' - the definition of sterling silver.
You may see a few = different symbols in our hallmarks. These are: the sponsor’s mark, millesimal fineness mark and the assay office mark. 'JB', the sponsors mark, refers to us - our parent company Jewellerybox ltd.
The fineness mark, is likely either '375' or '925' for our cufflinks, as most are either 9ct gold, or sterling silver. Finally, the assay office mark - this refers to the Assay Office that hallmarked the item. We use the Edinburgh assay office, which has a stamp of a three-towered castle. There are Assay offices in Sheffield, Birmingham and London which all have different stamps.
Read our Hallmarking page to find out more.