GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/1541/18  
  Colour:     Blue  
  Weight:     3.92cts 
  Shape Cut:     Oval Facetted 
  Transparency:     Semi Transparent 
  Optic Character:     DR 
  RI:     1.76-1.77 
  Hardness:     9 
  Characteristics:      
  Observation:     Natural Blue Sapphire (Nilam) 
  Remarks:     Size:-9.55x7.40x4.90mm