Jessica Poole is a pioneer in the world of ethically produced jewellery. The London-based designer is passionate about using traditional jewellery-making techniques to produce unique, contemporary collections. She is also dedicated to ensuring that her collections have a social conscience. This elegant Sapphire Twist engagement ring in Fairtrade gold features a pear-cut Malawi purple sapphire, encased in a Canadian diamond pavé loop. The diamonds taper off down the ring shank, which twists and turns to show off the alternate matt and polished finish of the band. Jessica's Sapphire Twist engagement ring has been designed so that it interlocks seamlessly with the wedding band (£680), which is crafted from the same ethically mined gold and mirrors the twists and turns of its partner. One of the most unique elements to these rings, and to Jessica's jewellery collection as a whole - available at Olive & Reg - is that all materials can be traced back to their origin, ensuring all metals and gemstones have been sourced in an ethical and environmentally sustainable manner. The engagement ring is a symbol of love and a promise for the future - what could be more romantic than knowing that the ring on your finger has benefitted all those involved in its creation?