Lot 1984. Important 21.18 carats H VVS1 Diamond Ring. Estimate: HK$9,000,000.00 - HK$12,000,000.00 (US$1,150,000-1,900,000). © Christie's Images Ltd 2018. 

Round brilliant-cut diamond of 21.18 carats, circular-cut diamonds, gold, ring size 53/4
GIA, 2013, report no. 2155676502: 21.18 carats, H colour, VVS1 clarity, excellent cut, polish and symmetry .

Christie's. Hong Kong Magnificent Jewels, Hong Kong, 27 November 2018.