16.0 X 20.5 - 2.5 mm. Fine Silver, 925 parts per 1000. The item must be in original condition. Please do not make any single payments if you want to combine.If you have any questions. We're confident we can resolve any issues to your satisfaction. This item is in the category "Jewelry & Watches\Fine Jewelry\Necklaces & Pendants". The seller is "pongpanotgems" and is located in this country: TH. This item can be shipped worldwide.