Vintage Unisex Sterling Silver Bali Chain Necklace. Original 4mm sterling silver Bali Byzantine chain necklace. Tested with proper acid. Security system Length about 44cm Weight about 32.1g Good vintage condition Condition:Pre-owned: Item has been used. ... Pre-owned: Item has been used. any imperfections. Type:Chain Metal:Sterling silver Metal purity:925 parts per 1000