18kt YG 8 Strand Chalcedony & Diamond Necklace: Chalcedony bead & diamond necklace features an oval cabochon chalcedony (18mm x 12. 5mm) bezel set in heavy pave diamond foliate design with center clasp. Total diamond weight approx. 3. 00 cts in clasp. Measures 18"L. Purchased in 1981 from Ugo...