Sapphire - steel blue

TType: Sapphire Heat Treated

Origin: Missouri River, Montana, USA

Weight: 1.21

Color: Blue - heated Phillipsburg

Cut: Trigonal (Trigonal Bthompson); 1.21 Cts.; 6.34 mm

Clarity: VVS

Size: 6.34 mm

Treatments: No known treatment

Genealogy: Mined by FOco Gems heated in Phillipsburg, cut in Montana

Hardness: 9

Source: Boston Bar Mine

Comments: This is a lively stone. Original rough: 3.2 Cts was cut into a 1.21 cts stone retaining about 38% of the original.