A sapphire and diamond ring. Photo courtesy Bonhams

The step-cut sapphire, weighing 5.86 carats, flanked by shield shaped diamonds, ring size 5¾. Estimate HK$ 1.12 million - 2 million (€110,000 - 190,00)

Accompanied by two Gübelin Gemlab reports stating that the natural sapphire has no indications of heat treatment and originates from Kashmir. Report number 12120146 and 0404617, dated 27 December 2012 and 22 April 2004.

Bonhams. FINE JEWELLERY & JADEITE. Hong Kong.23 Nov 2013