18kt white gold 18kt white gold Sleek Akoya pearl diamond earrings from YOKO LONDON featuring butterfly fastening, Akoya pearl, round cut diamonds and for pierced ears. These earrings come as a pair.. 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..