1.33 Ct. Greenish Blue Sapphire from Montana

This transparent 1.33 carat round greenish blue sapphire from Montana presents as a study in disciplined craftsmanship and natural color complexity. The stone measures 6.19 by 6.08 by 4.08 mm and is fashioned in a mixed brilliant cut, combining a brilliant crown with a well executed step pavilion to optimize both scintillation and face up color. The mixed brilliant profile allows the table to operate as a window into the saturated body color while the pavilion steps provide controlled light return, enhancing color purity without sacrificing sparkle. Clarity is graded as very slightly included at eye level, with inclusions that are discrete and localized, which preserves visual transparency and allows the intense color intensity to read cleanly across the table. Excellent polish on facet planes and clean facet junctions are evident, producing crisp light edges and lively facet contrast, and the absence of any enhancement confirms that this gem displays its color from intrinsic trace element chemistry rather than laboratory modification. As presented by The Natural Sapphire Company, this sapphire is an exemplar of Montana provenance where careful cutting strategy achieves balanced light performance and a vivid, natural hue.

In hue and tone the greenish blue character of this Montana stone sits on a distinct segment of the sapphire color spectrum that differs materially from classic deposits elsewhere. Compared to Kashmir sapphires, which typically exhibit a velvety cornflower blue with subtle violet overtones and a medium dark tone that produces a soft, plush appearance, this Montana example leans toward a cooler green inflection and retains a slightly lighter to medium tone that emphasizes clarity and scintillation rather than the pillowy depth associated with Kashmir. Against Ceylon or Sri Lankan sapphires, which often present a brighter, lively blue with a tendency toward lighter tone and slightly higher blue chroma, the Montana gem maintains more noticeable green modulation and a denser face up saturation, resulting in a more complex blue green reading. When contrasted with Burmese sapphires that can show a pure, saturated royal blue with minimal secondary hues and a medium to medium dark tone, the Montana stone is inherently more bi chromatized, the green component shifting the perceived temperature toward teal under various lighting, and giving the gem a unique place for collectors seeking color complexity.

Comparisons to other notable origins further clarify the Montana profile and underscore the cutting decisions made for this round mixed brilliant. Australian blue sapphires often display a deeper, inky tone with strong green or gray modifiers and a heavier, more opaque appearance, whereas this Montana sapphire retains transparency and lively facet reflection because of its medium tone and precise proportions. Madagascar material can rival Sri Lanka in brightness and range from electric blue to blue violet, but Madagascar stones frequently show a purer blue hue with less green admixture than this Montana piece. The mixed brilliant cut on this round stone was therefore specifically chosen to maximize the stone’s intense color intensity while controlling tone, ensuring that the greenish blue hue reads consistently from face up and through the pavilion. For a discerning buyer who values provenance and natural state in addition to optical performance, this Montana sapphire offers an exceptional combination of transparent body, concentrated saturation, subtle green inflection, and top quality finish, and represents a distinct alternative to the more canonical blues of Kashmir, Ceylon, Burma, Australia, and Madagascar.