14K YELLOW GOLD CITRINE, ONYX, DIAMOND NECKLACE FEATURING ONE OVAL CUT CIT= 4.50 CT. AND 23 RBC DIA.= 0.35 CT., F / VS-1. RIBBED BLACK ONYX PORTIONS. 14K-YG WEAVE, BRAIDED NECKLACE PORTION MEASURING 18 IN. LONG. TOTAL WEIGHT= 47 GRAMS. CIRCA 1970S.