A Kashmir sapphire, diamond, and platinum ring centering an oval-cut Kashmir sapphire weighing 2.60 carats, flanked by round brilliant-cut diamonds weighing 1.29 and 1.24 carats each, set in an openwork platinum mount. Size: 4 provenance: Accompanied by GRS report #GRS2018-086770, dated August 17, 2018, stating one 2.60 carat sapphire of Kashmir origin with no evidence of heat treatment. Accompanied by GIA report #2195750722, dated October 17, 2018, stating one 1.29 carat round brilliant-cut diamond, J color, SI2 clarity. Accompanied by GIA report #6197751896, dated October 17, 2018, stating one 1.24 carat round brilliant-cut diamond, I color, VS1 clarity. See More