1920'S NECKLACE OF FINE PEARLS The platinum and 18K white gold clasp is set with small old-cut diamonds. Gross weight: 10.85 g. Length: 42 cm. Diameter of pearls: approx. 3 to 6.6 mm. LFG analysis report, in its opinion: fine seawater pearls, no indication of treatment. A natural pearls necklace with a diamond, platinum and 18K white gold clasp, circa 1920. Gross weight : 10,85 gr. Length : 42 cm. Pearls diameter : 3 to 6,6 mm approx. LFG report, in their opinion : saltwater natural pearls, no indication of treatment.