I see a few turquoise beads with tiny chips, but nothing significant that detracts from the necklace. The clasp is unmarked but tested as solid sterling silver. The center turquoise piece measures 1.5" x 1/2". The two pieces on either side measure 1 3/8" x 1/2". The largest cylinder beads measure 10.5mm and the smallest measure 4mm. Total weight of the necklace is 66.1 grams. The beads are strung on old string so I would recommend restringing the necklace at some point in the near future. Please feel free to ask any questions. The item "Vintage Native American Navajo Turquoise Round HEISHI Disc Bead Necklace 27" is in sale since Friday, April 23, 2021. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Necklaces & Pendants". The seller is "pek1010" and is located in Leawood, Kansas. This item can be shipped to United States.