The Long Necklace - Aqua Marine / Diamond Quartz Long Necklace - Aqua Marine / Diamond Quartz is an elegant diamond quartz designed to bring warmth, texture and understated character into the home. Designed to layer effortlessly into the home, it adds depth, texture and a refined finishing touch to everyday spaces. A timeless addition for homes that favour natural detail, layered materials and pieces with a sense of story.