Natural Blue Sapphire (Neelam) – Unheated Ceylon Origin Stone Name: Natural Blue Sapphire (Neelam)Weight(Carat): 5.27 Weight(Ratti): 5.85 Refractive Index: 1.76 Specific Gravity: 3.99 Shape: OctagonTreatment: Unheated (No Heat)Dimensions: 11.4 × 7.3 × 6 mmOrigin: Ceylon (Sri Lanka)Color: Royal to Deep BlueClarity: Eye CleanCut: Precision FacetedCertification: Available on Request
