Featured in this lot is this rare unheated natural sapphire and diamond ring with IAS and GIA paperwork. The ring shows a platinum ladies custom halo ring with 'Orianne' hallmark shown next to a 'PT950' stamp. The center stone is a modified brilliant step cut oval natural sapphire showing no indication of heating, with violet changing to purple and the stone being transparent; the sapphire has measurements of 6.65mm x 5.49mm x 4.42mm and a weight of 1.36cts. The ring shows a pave decoration with a halo ring around the center stone and two larger diamonds on the shoulders; the diamonds are round brilliant cut natural diamonds with VS - SI1 clarity, a color gradient of, G and a collective weight of 0.24cts. The ring size is US 7 1/4. The piece comes complete with IAS (Independent Appraisals Services, a GIA certified lab IAS Appraisal Number#: 16019EW1) report and appraisal, confirming the above info and giving a total value of $6,500.00. GIA (Gemological Institute of America) Sapphire Grading Report#: 2205642851.