1.36 Ct. Bluish Green Sapphire from Montana

This transparent 1.36 carat cushion shaped bluish green sapphire is presented by The Natural Sapphire Company as an excellent example of Montana sourcing and thoughtful lapidary work. Its dimensions are 7.18 by 5.78 by 3.88 millimeters, a proportion that yields a pleasing presence on the finger while maintaining strong optical performance. The gem is fashioned with a mixed brilliant cut, combining a brilliant style crown with a complimentary pavilion that is calibrated to balance scintillation and depth of color. The color intensity is described as intense, resulting in a rich bluish green tone that reads vibrant face up, and the surface finish is of excellent polish which enhances apparent brilliance. The stone has been heat treated, a widely accepted enhancement in the trade, and it displays transparent clarity and a clarity grade of very slightly included when evaluated at eye level, indicating minor internal features that do not detract from overall beauty or light transmission.

The geometric faceting of this cushion sapphire is specifically designed to maximize light play. The mixed brilliant approach places smaller, kite and triangular facets on the crown to break incoming light into bright flashes, while the pavilion facets are oriented to return light efficiently through the table. This engineered interplay of angles creates both broad flashes of color and pinpoint scintillation, giving the gem a dynamic character as it moves in different lighting conditions. With a depth that equates to roughly sixty percent of the average diameter, the stone preserves an optimal balance between depth and spread, avoiding a dark windowed appearance while maintaining saturated color. Sapphires exhibit a refractive index near 1.76 to 1.77 and modest birefringence, and the thoughtful facet geometry here takes full advantage of those optical properties to produce lively internal reflections, strong contrast, and an attractive spread of light across the table and crown facets.

From a clarity and grading perspective, the very slightly included assessment at eye level places this sapphire in a category that is attractive to informed buyers. Eye visible inclusions are minimal, and they are often internal needles or growth features typical for natural corundum, which in many cases act as identifiers of natural origin rather than detractors from value. These inclusions do not compromise structural integrity, and they are sufficiently minor that the gem presents a clean face up appearance in everyday wear. Excellent polish contributes materially to perceived brilliance, because even the finest facet architecture will underperform if light is scattered by surface abrasion. The heat treatment disclosed for this stone is a standard and stable enhancement used to improve color uniformity and remove silk like inclusions in many sapphires. This treatment is widely accepted within the responsible jewelry market, and it is permanent when properly performed. The Natural Sapphire Company fully discloses this treatment, and the overall combination of transparency, intense color, and minor inclusions results in a sapphire that offers both aesthetic appeal and market integrity.

The origin of this sapphire in Montana adds an additional dimension of desirability for collectors and connoisseurs who value provenance. Montana sapphires are noted for a distinctive palette that ranges from deep teal to cleaner cornflower or bluish green tones, often with a natural vibrancy and tonal complexity that many buyers find compelling. These stones are comparatively rare in the global supply, especially when they combine true transparency, intense color, and eye level very slight inclusion. For the educated buyer considering long term value, the gem represents a convergence of desirable attributes, including a recognized origin, responsible enhancement practices, and a lapidary cut that maximizes optical performance. Practical considerations for setting include a design that showcases the cushion outline and allows light to enter through the crown freely, such as a low bezel with open gallery or a classic prong setting that does not obstruct the pavilion. The Natural Sapphire Company stands behind the gem with full disclosure of its characteristics, and our gemstone specialists can provide further imaging and certification options for buyers seeking additional documentation. This sapphire is a strong choice for anyone seeking a collector grade yet wearable gem that demonstrates both natural beauty and technical excellence.