Scrap Gold – What are Carats?
A carat (also known as karat) is a unit of purity for gold. One carat is contains 1 part gold to 23 parts other substance. 24 carat is pure gold, which means that there are 24 parts gold. When making gold jewellery, the gold is usually mixed with other metals like silver or copper which reduce the carat purity. Reasons …