Sapphire - Natural Steel Blue

Type: Sapphire Natural

Origin: Missouri River Helena Boston Bar, Montana, USA

Weight: 1.20

Color: Blue Steel

Cut: Round (Calibrated-73)

Clarity: VVS

Size: 6.17 mm

Treatments: Heat treated in Phillipsburg Montana - natural stone 

Genealogy: FOco Gems Mined and Cut

Hardness: 9

Source: Boston Bar mine FOco Gems Cut

Comments: Steel blue sapphire with excellent flash.

The original rough was 3.4 Cts which was cut to 1.195 cts. Gemstone retaining 35 % of the original material

Cotton fibers from the stone packing cases may be photographed on the stone.