98 - Art Deco Period Rectangular Green Jadite, Platinum, Diamond and Black Onyx Necklace and Pendant with 14 Karat Yellow Gold Clasp. Circa 1920. Clasp Signed 585. Very Good Condition. Pendant Measures 1-3/4 Inches by 1-1/4 Inches. Necklace Measures 22 Inches Long. Shipping $20.00 (estimate $5,000-$7,000)