HALLMARKINGINFORMATIONS

For the manufacture of jewellery and silver-

ware, precious metals are not used in their

purest forms. Instead they are alloyed with

other metals. It is not possible to discern by

sight or by touch what the precious metal

content of an alloy is. 

Our customer can rest assured that all our

products come with a guarantee of the precious

content through the 700-year-old practice of

third party independent hallmarking. 

The 1973 Hallmarking Act makes it unlawful to

describle an item over a certain weight as Gold,

Silver, Platinum or Palladium without  an inde-

pendently applied Hallmark. 

All Silver articles weighing more than 7.78

grams must be hallmarked.

All Gold articles weighing more than 1 gram

must be hallmarked.

All Platinum articles weighing more than

0.5 grams must be hallmarked.

All Palladium articles weighing more than

1 gram must be hallmarked.

Articles below this exemption weights may be

described as Gold, Silver, Palladium or Platinum

without the need for hallmark. 

SIGNETS & SEALS

HALLMARK EXAMPLE

Sponsor’s Mark (S&S) - Signets and Seals

Traditional Fineness Symbol (Crown) - Gold

Millesimal Fineness Mark (585) - 14ct gold

Assay Office Mark (tigers head) – London Assay Office

Date Letter Mark (U) - 2019

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