An opera (35 inch) length necklace of translucent, glowing, all natural Chalcedony beads. Beads are 10mm and individually knotted. Sterling silver goldwash box clasp in good order with a small Chalcedony stone. The beads have mostly blue-gray, lavender and a few have an amber glow. 548 carats. Uncirculated condition from the 1970s.