Opals are a stunning stone, and you will never find two that look exactly the same. Opals are made over time through a process that involves a combination of water and silicon dioxide, and because of this no stone is identical. The colours in opals are intensely divine, and they are the perfect gem to choose as a gift for yourself. However, before you pick up the first opal piece that you see in the jewellery store, consider these three tips.
25 March 2015