8.5-9mm Akoya pearl necklace with antique platinum & diamond claspAA++ quality 8. 5 9mm Japanese Akoya pearl necklace with antique platinum & diamond clasp A unique and beautiful 46cm (18 inch) white saltwater pearl necklace with an antique platinum and diamond push in clasp. The pearls are hand knotted between each pearl, onto double threaded silk. The pearls are beautiful 8. 5 9mm new Japanese Akoya pearls with a thick nacre, incredible luster and a rose overtone. The pearls have minor imperfections, so are graded