Hallmark stamped

[diamondadvisor]

A hallmark protects you against fraud, and protects merchants against
unfair competition. Gold and silver have been mixed with other metals
for centuries, as they are much too soft in their original form to make
jewellery. It is not possible to recognize at a glance the quantity of
cheaper metals used during manufacture. A layer of gold of a couple of
microns can seem like real gold when still new. Most competent jewellers
and chemist also cannot tell how much of the noble metal is present in
an alloy. 'Hallmark stamped' (http://tinyurl.com/6zjjtfq)

Because of the high price of noble metals, some dishonest merchants are
tempted to use less valuable alloys. This fraud is difficult to detect,
and duped are honest merchants and clients.

There has always been a need to protect the public and suppliers. This
is why all objects sold as gold, silver or platinum stamped with a
hallmark to confirm that they satisfy legal norms.

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diamondadvisor