Hello! Thank you for checking out this listing for this awesome piece of sterling (9.25) jewelry! Today we have this really nice, Paola Valentini, multi strand necklace from Italy! The necklace has a 4 inch extension on it. The total weight is 18.3 g. It measures 13 inch wearable. I have been testing precious metals for years, so please buy with confidence that this is authentic! I only use the appropriate acid/scratch stone tests. I check silver with silver acid on a white scratch stone (not 18 karat acid). I combine shipping on multiple items, so check out my other listings, and I ship next day (unless the next day is a Sunday or holiday). Thank you again and take care!