18kt recycled yellow gold 18kt recycled yellow gold Perpétuel.le diamond necklace from Loyal.e Paris featuring 18kt recycled gold, laboratory-grown diamond, FG/VS1-2 diamond colour and clarity, polished finish, circular pendant, lobster claw fastening, logo plaque and adjustable-length chain. POSITIVELY CONSCIOUS: This Planet Conscious product is crafted from certified recycled or upcycled materials, which helps you make a better choice for the environment as they generate less energy, save water and reduce the need for new raw materials. For recycled synthetic clothing products we highly recommend using a microfibre-catching washing bag to ensure that no microplastics that can pollute water are released in the process..