GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/1702/18  
  Colour:     White 
  Weight:     3.35cts 
  Shape Cut:     Round cabochon 
  Transparency:     Opeque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:      
  Observation:     Natural Opal 
  Remarks:     Size:-10.50x10.50x6.40mm