GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/41369/18  
  Colour:     Gray 
  Weight:     3.39cts 
  Shape Cut:     Oval Cabochon 
  Transparency:     Opaque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:     Size:- 14.80x9.90x5.80mm 
  Observation:     Natural Opal 
  Remarks: