Necklace with fine sapphire 5.31 ct and 25 brilliant-cut diamonds totaling ca. 11.16 ct,

Necklace with 25 brilliant-cut diamonds totalling ca. 11.16 ct and oval faceted natural sapphire 5.31 ct (engraved), no indication of heat process, with AIGS report (2009), 1 facet edge min. chipped, crowned by diamond ca. 1 ct, ca. EW-RW (E-F)/VVS, the others 24 diamonds ca. 0.42 ct each, ca. WHITE (H)/VS-SI, 18K yellow gold, 74.7 g, L: 46 cm, late 20th century, minor signs of wear, including AIGS report GF0908353 and case.