GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/2431/19  
  Colour:     White 
  Weight:     11.91 cts 
  Shape Cut:     Oval Cabochon 
  Transparency:     Opaque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:     size:- 19.30x12.80x9.35mm 
  Observation:     Natural Opal 
  Remarks: