GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/3653/19  
  Colour:     Gray 
  Weight:     5.43 cts 
  Shape Cut:     Pear Cabochon 
  Transparency:     Opaque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:      
  Observation:     Natural Opal 
  Remarks:     Size:- 18.40x9.80x5.80mm