Koi Necklace Girly jewelry, Jewelry, Lucky charm bracelet Gold Koi Fish Necklace 3 Colors Large Good Luck Necklace Blue Etsy Koi Fish Moon Necklace, Hand Painted Jewelry, Goldfish Necklace, Koi Gold Koi Fish Necklace 3 Colors Large Good Luck Necklace Blue Red. The Golden Koi Necklace by See Real Flowers honors the ancient legend of the koi who swam against the current and transformed into a golden dragon a symbol of perseverance and good fortune. This version features an 18k gold koi charm alongside a luminous rainbow moonstone and a rose cut grey diamond, each hand set in 18k gold. The charms rest on a beige nylon cord knotted with tiny coral pearls delicate, durable, and waterproof for everyday wear. At 16 inches, its a quietly powerful piece meant to be worn close to the heart.