Blue Topaz Tumbled 28.25gm Rough GR1067P

28.25gm 1pc Blue Topaz Gem Rough 
Natural Gem Rough Ready for Faceting

Gem Information:

Gem: Topaz, Blue

Count: 1
Shape:Natural Crystal Rough
Measurements: (approximate) 38.8x25.17mm
Polish: tumbled
Carat Weight: 28.25gms or 141.25cts.
Cut: Elongated Rectangle
Other1: Old mined material 1980-1990
Other2: Grade AAA
Other3:
Color: Swiss Blue
Clarity: VVS
Country of Origin: Germany
Refractive Index: 1.62
Treatments: Irradiated