An Unique Coloured Diamond, Sapphire and Diamond Ring, by Jar. Photo Christie's Image Ltd 2012

Centering upon a rectangular-shaped fancy pink diamond weighing approximately 8.59 carats, within an oval bombé surround pavé-set with circular-cut sapphires, joined to the single-cut diamond hoop, mounted in platinum and 18k yellow gold, ring size 4. Signed Jar, Paris. Estimate HK$24,000,000 - HK$35,000,000 (US$3,000,000-4,500,000) - Price Realized HK$27,540,000 ($3,570,082)

Accompanied by report no. 5131991349 dated 26 october 2011 from the Gemological Institute Of America stating that the 8.59 carat diamond is fancy pink, natural colour, vs2 clarity

What defines Jar's work is his superior craftsmanship, evocative of the quality of art in the 18th and 19th centuries, often resulting in comparatively sculptural objects and his propensity for incorporating unusual gemstones into his creations resulting in vivid color palettes. the superb pink diamond set within a pale blue sapphire surround is a soft and subtle jewel and yet one that is ever so striking, a balance that only Joel Rosenthal would imagine.

Christie's. Hong Kong Magnificent Jewels. 27 November 2012. Hong Kong