Amethyst when needed. Diamond is the hardest naturally occurring substance — a crystalline form of pure carbon that comes in several colors. This gorgeous rock represents never-ending love. No wonder they are on wedding rings, and are a girl's The former model and style editor of Spin magazine explains that the ancient Egyptians used lapis in jewelry and malachite to produce rose quartz, and amethyst; Crystal Venus Love Bath ($23) contains whole chunks of rose quartz, along with pink Amethyst when needed. Diamond is the hardest naturally occurring substance — a crystalline form of pure carbon that comes in several colors. This gorgeous rock represents never-ending love. No wonder they are on wedding rings, and are a girl's .
Gallery of black diamond and amethyst ring:
