Yvonne Léon creates heirloom-like jewellery that's sparked by the curiosity of vintage treasures and flea market finds. Signet rings are a fan-favourite of the Parisian label. It's easy to see why with this oval-cut ring. It’s crafted in a 9ct yellow gold and punctuating its rope framed onyx stone is a bezel set diamond, creating a sparkle when catching the light.