CEYLON SAPPHIRE AND DIAMOND DAISY RING IN 18KT WHITE GOLD DAISY RING WITH CEYLON SAPPHIRE AND DIAMONDS 18kt white gold, embellished with an oval-cut Ceylon sapphire of ct 4.50, surrounded by brilliant-cut diamonds of ct 2.30, hallmark 750, size 18/58, gr. 6. Accompanied by an IGN certificate dated 06/09/2024 certifying the geographical origin of the sapphire and the absence of heat treatment.