WHITE SOUTH SEA PEARL NECKLACE WITH 18K CLASP: 31 large white South Sea pearls form this gorgeous 17'' necklace with 18K yellow gold ball clasp; clasp has a small textured indent that appears to be the maker's mark. Pearls are graduated and range in size from 12mm to 15mm and are knotted with silk thread. Slightly blemished with excellent luster. Sold with an appraisal from Joulz Distinctive jewelry in Australia dated Feb, 2015 for $10,750.