1.81 Ct. Bluish Green Sapphire from Montana

This transparent 1.81 carat oval sapphire measures 7.75 x 6.19 x 4.93 millimeters, exhibiting a precise mixed brilliant cut with a brilliant style crown and modified step pavilion, engineered to balance scintillation and saturated color. The pavilion depth relative to the average girdle diameter is approximately 70.7 percent, a slightly deeper profile that enhances color saturation and face up presence in an oval outline. Faceting follows a modified brilliant schema on the crown with kite and star facets that direct light into a stepped pavilion array, producing controlled light return and stable tone. Clarity is graded as very very slightly included evaluated at eye level, indicating only minor internal features that do not materially interrupt brilliance, and the surface finishing is an excellent polish, demonstrating careful lapidary technique and facet junction precision that minimize light leakage and maximize contrast.

Color is intense bluish green with strong saturation and a medium to medium dark tone, characteristic of quality Montana material, showing distinct pleochroic behavior with bluish and greenish flashes noticeable as the stone is rotated. The mixed brilliant cut was intentionally chosen to marry brilliance with color depth, allowing the crown facets to scatter light while the pavilion steps confine and deepen the bluish green hue. This sapphire has been heat treated, a stable and widely accepted enhancement used to optimize color and clarity, and the treatment is consistent with best practices for Montana sapphires, producing a natural appearing, durable color. The gem presents a balanced face up appearance that reads larger than its weight might suggest, owing to the well proportioned oval dimensions and the cutter's preservation of weight while maintaining optical performance.

On the Mohs hardness scale, sapphire rates at nine, second only to diamond which is ten, and considerably harder than common jewelry minerals such as topaz at eight and quartz at seven, confirming exceptional resistance to everyday scratching and abrasion. This makes the stone well suited for daily wear in rings, while prudent setting choices such as protective bezels or robust prongs will mitigate the risk of facet chipping from hard impact. For buyers seeking technical quality, provenance, and lapidary refinement, The Natural Sapphire Company presents this Montana sapphire as a finely executed example of mixed cut craftsmanship, intense bluish green color, and durable gemological performance.