18kt yellow gold 18kt yellow gold Starlight Golden South Sea Pearl and diamond necklace from YOKO LONDON featuring clasp fastening, delicate chain, Golden South Sea pearl 13-14mm and G/VS quality grade 0.68ct diamonds. This piece comes with a certificate of authenticity. Pearls should be the last thing that you put on in the morning and the first thing you take off at night. Avoid contact with perfumes or creams, and simply wipe with a soft cloth to clean .