"In the UK it is illegal to sell or describe any item as Gold, Silver,
Platinum or Palladium unless it is hallmarked. A UK hallmark is added by an
independent assay office and guarantees the precious metal content of the
item you are buying. Sellers in contravention of the law may be prosecuted
and could face fines or imprisonment."
When delivery is to an EU member state, Israel, Norway, or Switzerland we
will add "International Convention" hallmarks. For all other overseas
deliveries, including the USA, the fineness of the precious metal will be
engraved inside each ring. However, should you wish UK hallmarks to be added
please let us know at the time of order.
Source: British Hallmarking Council (Version 5/2015)
International Convention Members
Austria, Cyprus, Czech Republic, Denmark, Finland, Hungary, Ireland, Israel,
Latvia, Lithuania, Netherlands, Norway, Poland, Portugal, Slovak Republic,
Slovenia, Sweden, Switzerland (and the UK).