Gold (carat) - 9ct is the lowest content solid gold alloy we will use for jewellery making. It is 37.5% gold alloyed with other metals - usually copper and silver. It is the most hard-wearing of all gold alloys and is ideal for rings and bracelets. It is usually safe for those with sensitive skin.
Note: Carat is the measure of gold content: 24 carat is pure gold, 9ct gold is 37.5% pure, 14ct gold is 58.5% pure and 18ct is 75% pure. 24 carat gold is unsuitable for most jewellery applications.
Another point to note is that some gold is alloyed with copper and nickel - the latter being strictly controlled by law due to its toxicity - we would never intentionally buy gold or silver that could potentially contain nickel, we check as best as we are able with our chosen suppliers to ensure this - as they are reputable and well known organisations we trust they have performed due diligence on the content of the metal they supply.