🇬🇧✨ The Beauty of British Hallmarking — A Tradition of Trust

leto lama hallmarking

One of the quiet certainties in fine jewellery is something most people almost never see:

the hallmark.


In the UK, every precious metal jewel above a specific weight must be independently tested by an Assay Office before it can legally be called 18ct gold.

It’s a 700-year tradition of protecting clients — and makers.


But here is the part that surprised even me:


A while ago, I melted down old gold pieces sourced from Europe, Asia and the US.

They were all stamped 750 — the mark for 18ct gold.

Yet when I reused that metal from some of them to create a new piece and sent it for hallmarking…

it did not pass the 750 test.

The true purity? 730.

A tiny numerical difference — but one that matters deeply.

It matters for value, for integrity, for resale, for traceability… and for trust.

This is exactly why British hallmarking is so important:

🔸 It verifies metal purity independently

🔸 It ensures the gold is exactly what it claims to be

🔸 It protects clients and makers from inaccuracies

🔸 It preserves integrity across generations


Every Leto Lama jewel carries:

— my maker’s mark

— the metal fineness (e.g., 750)

— the Assay Office stamp


These tiny symbols guarantee that what you are wearing is authentic, honest, and exactly as described.


✨ A hallmark is more than a stamp.

It’s a promise — to you, to me, and to the piece itself.

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