0.27 Ct. Bluish Green Sapphire from Montana

This Montana origin sapphire is a technically refined specimen, weighing 0.27 carat, with dimensions of 4.01 by 4.02 by 2.42 millimeters, round in outline, transparent in body, and exhibiting a bluish green hue of medium intensity. The stone has been fashioned to a mixed brilliant cut, combining a brilliant style crown with a modified pavilion facet scheme to balance scintillation and color saturation, and it presents an excellent polish and near ideal symmetry as evidenced by the nearly equal diameter measurements. The measured depth of 2.42 millimeters yields an overall depth that is approximately 60 percent of the diameter, a proportion that was selected to maintain strong light return while preserving face up color in a small melee size. Clarity is graded as very slightly included at eye level, meaning inclusions are minor and localized, do not interrupt facet junctions, and have negligible impact on durability, and the stone has been heat treated, a standard and stable enhancement for Montana sapphires that improves tone and removes brownish overtones without compromising structural integrity.

From a lapidary perspective, the mixed brilliant execution on this piece is purposeful. The brilliant crown, with its smaller star and kite facets, generates pronounced scintillation and controlled dispersion, while the modified pavilion facets are arranged to redirect light back through the crown rather than allowing windowing, a common risk with shallow cutting on stones of this diameter. The cutter balanced table size and crown height to favor color retention, so the stone reads bluish green rather than washing out to pale blue under strong lighting. Excellent polish ensures crisp facet intersections and maximizes specular reflection, which enhances apparent brilliance under both direct and diffuse lighting. The very slightly included clarity allows the gem to maintain a clean visual appearance face up while preserving natural internal character, and the stability of heat treatment means the color modification is permanent under normal wearing conditions. For setting considerations, the dimensions and cut make this stone ideal for fine accent work, delicate solitaires, cluster rings, and bespoke designs where precision in proportion and color harmony is required.

Compared to lab grown sapphires, this natural Montana sapphire offers several advantages for the discerning buyer. Natural stones host growth structures, mineral inclusions, and zoning patterns that provide unique fingerprints of their geologic origin, and those features are favored by collectors and connoisseurs because they contribute to individuality and provenance. Montana sapphires in particular develop their distinct bluish green tones through natural variations in trace element chemistry and cooling history within alluvial and primary deposits, and that geologic narrative adds measurable desirability. While lab grown material can replicate corundum chemistry and optical properties with technical consistency, it lacks the random internal character and historical scarcity of a naturally formed piece, and as a result natural sapphires typically hold value and market preference for fine jewelry and collectible pieces. Furthermore, natural sapphires from reputable sources tend to have better documented supply chains and origin verification, attributes that matter to clients who prioritize ethical sourcing and long term value retention.

At The Natural Sapphire Company we emphasize full disclosure and technical transparency, presenting this 0.27 carat Montana sapphire with accurate measurements, a clear statement of heat treatment, and a detailed description of cut and clarity to assist in appraisal and design decisions. The stone combines the hardness and wearability inherent to corundum with lapidary choices that maximize optical performance at a small scale, making it a versatile option for high end accent work or refined minimalist settings. For clients who appreciate the subtle interplay of facet geometry, natural growth features, and geographic provenance, a natural Montana sapphire such as this offers a tactile and visual complexity that lab grown alternatives do not replicate, and it represents a distinct piece within any bespoke collection. If you require additional technical data, magnified imaging, or a discussion about setting options and appraisal documentation, please contact us for a prompt and detailed consultation.