Gorgeous saltwater Akoya pearls Long necklace! please see photos as part of description! necklace is approx 21-22? (please see photo near a ruler). the pearls are large and approx from approx 8.2 to 5mm- it is graduated necklace. a little info about sizes of akoya pearls: Typical Akoya pearls range from 5 mm to 11 mm, with the 10 and 11 mm sizes rare finds. The most common size and the best value is between 7.0mm - 7.5mm with a sharp jump at anything 8.0mm and above. please see photos for sizes and weight. clasp works well, big and has safety bar! If you want a real untreated pearls - consider buying an antique/vintage item. if buying a new item it could be bleached, dyed or irradiated, even light heating! also more possibility you will get a very thin nacre. please see photo of the clasp near ruler and on a hand as pretending ring - to help to understand better how big this clasp. this necklace is Vintage -ArtDeco to Post ArtDeco. comes in a velvet case! smoke free environment ! fast free USA Priority shipping! thank you! fast international priority delivery! measurements and weights are approx. thank you