COLUMBIAN EMERALD AND DIAMOND BAND RING IN 18KT TWO TONE GOLD COLOMBIAN EMERALD AND DIAMOND BAND RING 18kt yellow and white gold, embellished at the centre with an oval-cut emerald weighing ct 6, surrounded by brilliant-cut, baguette-cut and claw-cut diamonds weighing ct 6, size 14/54, gr. 16. Accompanied by an IGN certificate dated 03/07/2024 attesting to the characteristics and origin of the stone.