Buy Natural Original Blue Sapphire (Neelam rashi ratna) for sale online, weighing 8.15 carats (8.95 ratti). The cost price of the stone is provided and its price per carat can be calculated by dividing the cost price by stone weight (8.15 carat). The stone origin (where it is mined from) is Sri Lanka (Ceylon). The stone is hence popularly also known as Ceylon Blue Sapphire, Ceylonese Blue Sapphire, Srilankan Blue Sapphire, Ceylon Neelam, Ceylonese Neelam, Srilankan Neelam.. Blue Sapphire has many benefits. This gem is stated to be Unheated & Untreated. The value of the stone is good considering its properties and effects.