2.86 Ct. Bluish Green Sapphire from Montana

This transparent 2.86 carat marquise shape bluish green sapphire from Montana presents a precise balance of size and proportion, with dimensions of 10.59 by 7.20 by 4.82 millimeters. The marquise outline has been executed to a classic length to width ratio that emphasizes elongation while maintaining wearability, and the 4.82 millimeter depth produces a pavilion that supports both strong face up color and efficient light return. The mixed brilliant cut employed here combines a brilliant style crown with a more faceted pavilion geometry to concentrate sparkle into the center field while also opening the stone enough to reveal its intense bluish green hue. The cutter has managed the geometry to minimize the typical marquise bow tie, so the visual field appears uniformly saturated under typical lighting conditions, and the polished facet junctions demonstrate tight symmetry and alignment that preserve optical performance across viewing angles.

From a clarity and finish perspective this gem is graded very very slightly included when evaluated at eye level, indicating that any internal features are minimal and do not detract from the gem at normal viewing distances. Under magnification one will observe fine inclusions that are consistent with natural sapphire formation, and these minute features interact subtly with the mixed brilliant faceting to create delicate internal scintillation without creating cloudiness. The excellent polish is evident on both crown and pavilion facet planes, yielding crisp facet reflections and strong contrast between light and dark facet areas. The girdle has been finished to a practical thickness for secure setting, and the marquise points are well proportioned and faceted in a manner that reduces the need for heavy protective prongs while still allowing confident placement in a variety of mounting styles.

This sapphire has been heat treated, a standard enhancement used to stabilize and intensify color in corundum, and the treatment here produces an intense color intensity that displays bluish green tones with both cool and lively green components. Montana origin is important when assessing character and tone, because sapphires from this region frequently exhibit the distinctive teal and greenish blue spectrum that collectors prize for its individuality and natural appeal. Historically Montana sapphires have been sought after for American jewelry traditions since the late 19th century, appearing in period pieces and in contemporary designs that value local provenance. The present gem carries that regional signature, and its transparent body allows jewelers to design settings that showcase the tonal complexity that is emblematic of Montana material, whether the goal is an antique inspired solitaire, a modern halo arrangement, or a bespoke engagement design that references American mining heritage.

At The Natural Sapphire Company we emphasize craftsmanship and documentation, and this marquise sapphire exemplifies the firm commitment to sourcing, cutting, and finishing that our clientele expect. The cutter chose the mixed brilliant schema to balance color and brilliance, the heat treatment was applied to enhance stability and aesthetics, and the final polish and symmetry were executed to professional standards. For designers and connoisseurs who appreciate technical nuance, this gem offers a combination of measurable specifications and visual qualities, including its precise dimensions, its favorable proportioning, its excellent polish, and its intense bluish green coloration, all grounded in the mining history of Montana. When set, this stone will read as a statement of refined taste, combining traditional provenance with technically informed cutting decisions that maximize wearable beauty.