A SPINEL AND DIAMOND RINGA SPINEL AND DIAMOND RINGSet with a cushion-shaped pink spinel, weighing 5.03 carats, within an openwork round brilliant-cut diamond surround, ring shank detachable to become a pendant; mounted in 18k white and yellow gold; size 6½Accompanied by a GRS report stating that the natural spinel originates from Burma (Myanmar), purplish pink colour, with no indication of thermal treatment. Report #GRS2022-058477, dated 17 May 2022.Accompanied by a report stating that the natural spinel originates from Burma (Myanmar), vivid pink colour, has no indication of thermal treatment. 5.03克拉天然未經加熱處理緬甸粉紅色尖晶石配鑽石戒指/吊墜戒圍6½,附GRS及一張加拿大證書