GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/41374/18  
  Colour:     White 
  Weight:     3.97cts 
  Shape Cut:     Oval Cabochon 
  Transparency:     Opaque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:     Size:- 16.25x10.70x3.05mm 
  Observation:     Natural Opal 
  Remarks: