Buying 'Old' gold

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What differentiates 'old' gold to other types of gold is simply the colour. Gold jewellery is mostly made up of alloys containing gold.  The most common gold in the UK is 9ct gold - comprising of 37.5% gold and 62.5% of other metals.  The gold part of the alloy is a bright yellow, however the other metals making up the additional 62.5% can vary hugely.  Rose gold contains more copper, White gold contains more silver, and what people refer to as 'Old' gold contains higher levels of Zinc.

Should you have any questions, please contact Barnsley Jewellers through our eBay messaging system.

'Old' gold also produces problems when tested for quality and purity using acids.  The normal acid to used to test gold produces a brown reaction to signify 9ct gold, and usually produces a green, yellow or white reaction if the item is not gold.  However with 'Old' gold due to the higher levels of Zinc the test produces a fizzing green reaction usually associated with non-gold, which can confuse testers without experience.

Should you have any questions, please contact Barnsley Jewellers through our eBay messaging system.

 
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