Store › Moonstone, black opal and star ruby copper necklace Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Moonstone, black opal and star ruby copper necklace $345.00 Only 1 available One-of-a-kind necklace made with AAA grade moonstone, Black Ridge, Australian opal and star ruby. Add To Cart Added! One-of-a-kind necklace made with AAA grade moonstone, Black Ridge, Australian opal and star ruby.