At CIELA, refinement is found not only in how a piece looks, but also in how thoughtfully it is made. That is why applicable CIELA jewellery is independently tested and hallmarked by the Birmingham Assay Office.
When choosing a piece of jewellery, beauty may be what first captures your attention. Yet what lies beneath the surface matters just as much.
The composition of a precious metal cannot be reliably determined simply by looking at or touching it. A UK hallmark provides independent confirmation that the precious metal in a piece has been tested and meets the required standard of fineness.
For us, this small mark represents something important: clarity, accountability and confidence in what you wear every day.
What is a hallmark?
A hallmark is a legally recognised series of marks applied to qualifying precious-metal articles after they have been independently tested by an Assay Office.
Under UK law, jewellery described as gold, silver, platinum or palladium generally needs to carry a recognised hallmark when its precious-metal content exceeds the applicable exemption weight.
A complete UK hallmark normally contains three compulsory elements:
- The sponsor’s mark identifies the person or business that submitted the piece for hallmarking.
- The fineness mark confirms the precious-metal standard in parts per thousand.
- The Assay Office mark identifies the Assay Office that tested and marked the piece.
Hallmarked in Birmingham
Applicable CIELA pieces are submitted to the Birmingham Assay Office, one of the four Assay Offices authorised to apply UK hallmarks.
The Birmingham Assay Office was established in 1773 and is represented by its distinctive anchor mark. When this symbol appears as part of a complete hallmark, it identifies Birmingham as the Assay Office responsible for testing and hallmarking the precious metal.
This independent process gives our customers added confidence that the precious-metal content of an applicable CIELA piece has been verified outside our own workshop.
Does every CIELA piece carry a full hallmark?
UK hallmarking requirements include minimum-weight exemptions. The current thresholds are:
- Silver: 7.78 grams
- Gold: 1 gram
- Palladium: 1 gram
- Platinum: 0.5 gram
Refinement you can recognise
A hallmark may be discreet, but its meaning is lasting. It reflects a standard that can be independently verified and a commitment to describing precious materials responsibly.
At CIELA, every detail—from original design and considered craftsmanship to transparent material information—is part of creating jewellery that belongs in real life.
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