Opals are a truly unique gemstone. They are renowned for the radiant patterns of colour within the stone; in fact, the way opals reflect light into rainbows of colour is so unique, it has its own name – opalescence. Opals form in a range of colours, with their main colour ranging from white to black, and bright red to blue, with different types featuring a unique kaleidoscope of colours within. Opals symbolise hope, happiness, and love, making them a beautiful gesture for your loved ones with October birthdays.