1.36 Ct. Bluish Green Sapphire from Montana

This 1.36 carat cushion shape sapphire presents a precise set of proportions, with measurements of 6.41 x 5.20 x 4.43 mm that balance presence and versatility in fine jewelry. The stone is transparent, with a mixed brilliant cut that couples a faceted brilliant style pavilion with a modified crown layout to optimize both scintillation and color saturation. The cushion outline is gently rounded, allowing the pavilion facets to converge in a controlled manner that promotes strong facet contrast and lively table reflections. The external geometry and facet junctions exhibit careful symmetry, and the excellent polish on all facet planes ensures minimal light scattering from surface irregularities. Sourced from Montana, this sapphire has been heat treated, a standard and stable enhancement that refines tone and hue while preserving the mineral integrity of the corundum. These technical attributes make the gem suitable for settings that demand a precise fit, while the dimensions and cutting style preserve the gem weight to carat ratio that collectors and setters prefer.

Color is a defining attribute of this sapphire, described as bluish green with a medium color intensity that reads as teal to the eye under neutral daylight. The color classification stresses both tone and saturation, with a mid tone that maintains both depth and clarity without becoming dark. The mixed brilliant faceting pattern enhances the perceived color by creating controlled light return through the pavilion, and by allowing subtle pleochroic effects to manifest as slight shifts between blue and green when the stone is tilted. Color zoning, if present, is subdued at face up viewing angles due to the cutter having oriented the pavilion to balance hue distribution. Under warm incandescent light the stone leans toward richer green notes, while under full spectrum daylight the blue component becomes more pronounced, a behavior that is characteristic of quality Montana material. This responsive color behavior increases versatility in jewelry, as the gem can harmonize with both warm and cool metal tones depending on the setting and the lighting environment.

Clarity and cutting craftsmanship converge in this example to produce a visually clean and technically refined gem. The clarity is graded as very slightly included evaluated at eye level, meaning that minor internal features are present but do not detract from face up beauty in normal viewing conditions. These inclusions are consistent with natural origin, and they are often used by gemologists to confirm provenance and natural growth structure. The cutter achieved excellent polish, producing crisp facet junctions and smooth facet planes that maximize specular reflection and reduce surface light leakage. The mixed brilliant scheme employs smaller crown facets that create a controlled pattern of scintillation, while the pavilion has been proportioned to favor internal light return rather than leakage through the girdle. The girdle thickness is conservative, supporting secure setting without excessive weight loss, and the overall symmetry is tight, which preserves optical alignment across the table and pavilion. For setting recommendations, open prong or low bezel mounting will maximize light entry and display, while a halo or bead set surround can amplify the gem presence without masking its intrinsic color dynamics.

Acquiring this sapphire from The Natural Sapphire Company is an investment in both aesthetic refinement and artisanal control, as the piece embodies the material and human elements that underpin long term value in colored gemstones. Montana sapphires are prized for their unique teal to greenish blue palette, and a well cut, eye level clean specimen with stable heat treatment represents a durable and marketable asset within the corundum category. Heat treatment is disclosed and accepted within the trade, it enhances color while maintaining structural stability, and documented origin adds provenance that can positively affect future resale. The technical merits of this gem, from proportions to polish to clarity, underscore its suitability for custom commissions where exacting standards are required, and they support the gemstone remaining visually relevant across changing fashions. When set by skilled jewelers the sapphire will retain its optical performance and withstand daily wear, offering both immediate sensory reward and potential long term appreciation. The Natural Sapphire Company stands behind the technical and ethical sourcing of this gem, providing the documentation and guidance necessary for collectors and connoisseurs who seek an object that is simultaneously beautiful and crafted with precision.