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<p>[QUOTE=&quot;evelyb30, post: 322010, member: 36&quot;]Every once in a while, a very long while, something will turn up marked KP or possibly KGP.&nbsp; That&#039;s plumb gold, warranted to be exactly whatever the caratage says it is.&nbsp; Something marked 18k can be certified in the US if it&#039;s 75% gold or 74.8% or 75.1%. I&#039;m not sure of the exact variance allowed, but plumb gold is dead on.&nbsp; It&#039;s gone out of use again and isn&#039;t common.&nbsp; Most times if you see letters directly after a karat mark, it isn&#039;t solid gold.&nbsp; Things marked HGE, EP, Rolled Gold, KGF etc are all costume pieces.[/QUOTE]</p><p><br /></p>

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