Diamond is the birthstone for April. Diamonds are traditionally white, or colourless. Small amounts of defects or impurities can add colour to natural diamonds including: blue (boron), yellow (nitrogen), brown (lattice defects), green (radiation exposure), purple, pink, orange or red. Diamonds are the hardest natural material and natural diamonds need high-temperature and high-pressure conditions to form and are usually created at depths of  87 to 120  miles in the Earths mantle. The diamonds are then brought to the surface through volcanic eruptions.

Diamond is the symbol of purity; it bonds relationships, bringing love and clarity into a partnership. Wearing diamond jewellery is supposed to clear sight, and benefit the brain. Traditionally, it was used to counteract poisons.