Opals are a misunderstood gem. Thought to be unlucky, probably because they are relatively fragile and can easily break if knocked, they are often avoided. Italy’s Aqa has designed a range of jewellery capitalizing on the boulder opal, with pieces carved whole to show off the flashes of colour. Their rings are particularly unique (and would be unsizeable). This one shows off the flashes of colour in its organic setting. Fascinating. Select designs are available online at LuisaViaRoma.