2.37 Ct. Bluish Green Sapphire from Montana

This gemstone is a transparent round bluish green sapphire weighing 2.37 carats, with measured dimensions of 7.56 x 7.69 x 5.32 mm, and a mixed brilliant cut executed to preserve both weight and optical return. The cutter has retained a moderately deep profile, with the table and crown facets aligned to the classic brilliant schema while the lower girdle and pavilion facets have been modified to a mixed pavilion arrangement to balance scintillation with color saturation. The result is a gem that exhibits lively facet contrast when viewed face up, and strong internal reflections when tilted, indicating careful facet junctions and proportional relationships. The polish is graded excellent, which is evident in the sharp facet planes and crisp facet intersections that contribute to maximum light return and minimal diffusion of white light through the stone.

Color is a defining attribute of this sapphire, evaluated as bluish green with medium intensity, a hue strongly associated with Montana origin material. The medium intensity provides an attractive balance between saturation and versatility, offering a teal leaning in colder light and a greener aspect under warmer illumination, a behavior consistent with pleochroism typical of corundum. The mixed brilliant cutting strategy was chosen to make the most of this pleochroic behavior, orienting major facets to favor the most desirable color face up, while retaining depth to prevent windowing. The measured depth of 5.32 mm relative to the average diameter yields a depth ratio that is roughly seventy percent, a proportion that supports good face up color and depth without excessive darkness. Because this sapphire has no enhancement, the observed color and pleochroic responses are entirely natural characteristics of the rough material, preserved by the lapidary decisions made during cutting.

Clarity is described as slightly included when evaluated at eye level, which for practical purposes corresponds to inclusions that are minor and do not unduly impact brilliance or durability. The inclusions are consistent with natural Montana sapphires, typically small crystals and localized feathering, which are oriented and minimized through precise cutting. These features can add to the gemological interest, serving as fingerprints of natural formation, while remaining largely unobtrusive in a finished jewelry setting. The excellent polish further mitigates any potential distractive effects by enhancing surface reflectivity. From a wearability standpoint, sapphire is a nine on the Mohs scale, providing excellent resistance to abrasion and practical longevity for everyday settings. This particular stone, given its size and profile, is well suited to both solitaire ring designs using secure prong or bezel settings, and to more elaborate settings that treat the sapphire as the color focal point.

Our sourcing philosophy places the provenance and treatment history of each stone at the forefront, and this Montana sapphire exemplifies that commitment. The Natural Sapphire Company procures material from known Montana sources where possible, and maintains direct relationships with local miners and suppliers to ensure transparency in origin and treatment. Because this sapphire is natural and untreated, collectors and conscious consumers benefit from a stone whose color and clarity are unaltered by common enhancements such as heat or diffusion. For buyers seeking ethical assurances, we provide documentation of origin and treatment status alongside any purchase, and we work to support mining practices that respect local communities and minimize environmental impact. Choosing this sapphire is therefore not only a choice for a technically interesting and well crafted gemstone, it is also a choice that aligns with a careful, informed approach to gemstone collecting, as practiced by The Natural Sapphire Company. If you would like additional gemological data, viewing options, or advice on settings that will showcase the stone while protecting its integrity, we are available to provide detailed guidance and high resolution imagery.