What does carat meant?
Pure gold is too heavy and soft to be used in jewellery making. So gold is mixed with base metals such as zinc and copper, to form a stronger, more durable alloy. A carat is basically a measurement to ascertain the purity of the gold in your jewellery. 24 carat gold is 100% pure, whilst 22 carat pieces contain 91.6% gold, and 18 carat means the gold purity level is at 75%. This goes down to 6 carat, containing 25% gold.