Green & Blue Square Glass Pendant Sterling Silver Box Chain Necklace

Green & Blue Square Glass Pendant Sterling Silver Box Chain Necklace. In good preowned condition. Sterling silver box chain that is stamped 925IBB and does pass the sterling acid test. The metal on the pendant is not sterling silver though. The pendant looks like labradorite but registers as glass on my gem tester. Beautiful mossy green color with flashes of blue. Chain measures 18 inches in total length.