Accompanied by AGL report numbered 8088668/1-3, dated 20 February 2019, stating that the 17.23 carat sapphires are natural, Blue colour, of Kashmiri origin, with no gemological evidence of heat or clarity enhancement; with comments, stating that 'Non-heated sapphires are scarce. Sapphires are commonly heated to modify their color and appearance.';
Gübelin report numbered 15025259, dated 15 February 2015, stating that the 12.07 carat sapphire is natural, Blue colour, of Kashmiri origin, with no indications of heating; along with an information sheet, stating that 'The demand for natural, unheated sapphires keeps growing while the supply of such gems remains limited, making large, natural sapphires of gem-quality from all major sources...difficult to find.'; 
reports numbered 16052022 and 16050137, dated 7 and 1 June 2016, stating that the 2.82 and 2.34 carat sapphires are natural, Blue colour, of Kashmiri origin, with no indications of heating;
SSEF report numbered 105343, dated 6 March 2019, stating that the 12.07, 2.82 and 2.34 carat sapphires are natural, Blue colour of medium strong saturation, of Kashmiri origin, with no indications of heating.