Sapphire - Heat Treated - Steel Blue

Triangle (Calibrated-49)):0.69 Cts.; 5.04 mm

$181.00

Type: Sapphire Natural

Origin: Missouri River(Boston Bar), Montana, USA

Weight: 0.69

Color: Steel Blue

Cut: Triangle (Calibrated-49)

Clarity: VS

Size: 5.04 mm

Treatments: Heat treated in Phillipsburg Montana - natural stone Genealogy: FOco Gems Mined and Cut

Hardness: 9

Source: Boston Bar but source mine is Eldorado Bar; FOco Gems Cut

Comments: Incredible stone. Bright steel blue with a strong flash. Original ~2.3 Cts which cut into a 0.69 cts gemstone sapphire while it retained 30% of the original material.

Cut by BS (cutter) in Montana.

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