This necklace is custom made by one of our in house jewelers and will only find this style of work with us. All the stones are natural. The artist put 7 strains of different stones to make 1 large statement piece, turquoise, lapis, orange oyster shell,2 red oyster shell, purple oyster shell and 1 multi color strained with all the colors including white opals. The necklace has some strains long and some shorter. The necklace is 20 inches in length. A stunning piece of jewelry!