GEMOLOGICAL TEST CERTIFICATE
  REPORT NO : JBNGTL/3922/19  
  Colour:     White 
  Weight:     3.55 cts 
  Shape Cut:     Marquoise Cabochon 
  Transparency:     Opaque 
  Optic Character:     SR 
  RI:     1.45 
  Hardness:     6 
  Characteristics:      
  Observation:     Natural Opal 
  Remarks:     Size:- 8.40x4.40mm