Lot 2033. An important 23.00 carat Burma sapphire and diamond brooch. Estimate HK$2,500,000 – HK$3,500,000 (US$320,000-440,000). Price realised HKD 5,080,000. © Christie's Image Ltd 2015

The detachable pendant, set to the centre with a cushion-shaped sapphire, within a collet-set brilliant-cut diamond surround, suspended from a double bar brooch set throughout with brilliant-cut diamonds, between openwork circular diamond-set sides, the middle further accented by an overlapping loop, suspending three terminals composed of graduating diamond collets, mounted in platinum, 9.2 cm long

Accompanied by report no. 78157 dated 27 January 2015 from the SSEF Swiss Gemmological Institute stating that the approximately 23.00 carat sapphire is of Burma (Myanmar) origin, with no indications of heating and the colour of this sapphire may also be called 'royal blue' in the trade

Christie's. HONG KONG MAGNIFICENT JEWELS, 2 June 2015, Hong Kong