The Roberto Coin New Barocco Collection, threads in the characteristic mesh are unravelled and rewoven into complex, majestic patterns or into lighter, softer weaves. Beautifully crafted in 18ct yellow gold, the Rings is adorned with 0. 48 total carat weight of diamonds for just the right amount of sparkle. But what makes Roberto Coin jewellery truly special is the signature ruby inside each piece to brings a life filled with health, peace and happiness to the wearer.