This is a beautiful Genuine Black Blue Baroque Pearl Necklace. The Pearls, although sometimes called Black, are Peacock with some iridescence in blue, purple and green. They are Cultured Drip or Flameball Keshi Pearls of 16 to 21mm and they have extreme luster and very thick nacre. They are not perfectly smooth but that is part of their natural beauty. It is 17 1/2 inches and has a stunning Mother of Pearl Clasp set in 925 Sterling Silver It is truly Exquisite!