CEYLON SAPPHIRE AND DIAMOND RING IN 18KT WHITE GOLD CEYLON SAPPHIRE AND DIAMOND RING 18kt white gold, embellished with a central ceylon sapphire of ct 3.20, flanked by old-cut diamonds of ct 1.30, size 19/59, gr. 4. Accompanied by an IGN certificate dated 17/10/2024 certifying the geographical origin of the sapphire and the absence of heat treatment.