A pearl and diamond set ring

A pearl and diamond set ring, the pearl is millegrain set with six small shoulder diamonds, in platinum. Signed Coch. Size R. Accompanied with certificate number 06198 from The Gem and Pearl Laboratory dated 4th September 2012 stating that the button shaped pearl measures 7.1 - 7.2mm wide by 6 - 7mm deep, the ring weighs 2.06g (total) and the pearl is natural (saltwater)