Artisan 925 Silver MOP Marcasite Faceted Iolite Tourmaline Necklace

Good condition with light wear. Beautifully constructed and hallmarked "925" on back of pendant, circular ring and clasp. Stones were tested with the Presidium Gem Tester II. I couldn't determine if they are iolite or tourmaline since both are in the same line on the tester. Mother of pearl is on the pendant. The circular ring does have a hinge on back so the chain can be changed. Measures 18" long with a 3" extension. No missing stones. Rather heavy. GORGEOUS PIECE OF JEWELRY!! ITEM#1628