Tag Archives: decimal

Why are some things marked “.750″ and some things “18k”?

In European countries and in many other places, most jewellery manufacturers use a decimal system to express the purity of a piece of karat gold jewellery.  In North America and Britain, they mostly use the karat system.  Both systems represent the purity of the gold alloy used in making the jewellery.  The “karat mark” expresses [...]

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What is “karat gold?”

A term we are often asked about, and that is misunderstood even by many jewellers, is “karat gold”.  Also see the separate article on the differences between Karat Gold, Gold Filled and Gold Plate. The first thing to understand is that all gold, in pure form, is identical. Gold is an element and it doesn’t [...]

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