藍寶石及鑽石戒指藍寶石及鑽石戒指9.23克拉枕形喀什米爾天然藍寶石及5.25克拉枕形D/IF Type IIa鑽石戒指，附Gübelin、SSEF、AGL及GIA，配鑽石，鑲鉑金，戒指5 3⁄4號Details A SUPERB BELLE ÉPOQUE SAPPHIRE AND DIAMOND RINGAntique cushion-shaped sapphire of 9.23 carats, cushion brilliant-cut diamond of 5.25 carats, round diamonds, platinum, circa 1910Gübelin, 2008, report no. 0807201: 5.25 carats, D colour, Internally Flawless clarity, Type IIa, Appendix lettersSSEF, 2005, report no. 44969: 9.229 carats, Kashmir, no indications of heatingAGL, 2004, report no. CS 37371: 9.228 carats, Kashmir, no heat and clarity enhancementGIA, 2003, report no. 13000366: 5.25 carats, D colour, Internally Flawless claritySize/Dimensions: US ring size 5 3⁄4Gross weight: 9.0 gramsPlease note that the reports are over 5 years old and may require updates. Provenance Christies, Hong Kong, 2 December 2008, lot 3109