What is a HALLMARK?
A Hallmark consisted of three COMPULSORY MARKS. The symbols give the following information:
- who made the article
- what is its guaranteed standard of fineness
- the Assay Office at which the article was tested and marked
This is a Best Mood Ring's Sterling Silver ring. It is the smaller three symbols that have been stamped by the British assay office.
These symbols show
Due to importing nowadays, many pieces of jewelry are only stamped '925' by the manufacturer. However, it may be a lower quality Silver or even silver plated. Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Legally you do not have to hallmark Silver jewelry under 7.78grams. However, we like to reassure customers that you are buying Sterling Silver.
- 0.5 grams for Platinum
- 1 gram for Gold
- 1 gram for Palladium
- 7.78 grams for Silver
When an item is received at an Assay office it goes through three processes:
• SAMPLING traditional method to remove a tiny piece of the precious metal for testing. Today we are more likely to use a non-destructive method using XRF (X-Ray Fluorescence Spectrometry) machines
• ASSAYING to determine whether the precious metal content of the alloy meets the required standard.
• HALLMARKING to apply the appropriate mark to the article.