1.36 Ct. Bluish Green Sapphire from Montana

This 1.36 carat cushion shape bluish green sapphire measures 6.41 x 5.20 x 4.43 millimeters, offering compact proportions with a balanced depth that favors both color saturation and face up brilliance. The stone has been fashioned with a mixed brilliant cut, integrating a faceted crown that maximizes scintillation, with a more stepped pavilion design that preserves weight and enhances internal color dispersion. Clarity is graded as very slightly included at eye level, which in practice means the stone appears clean to the unaided eye from typical viewing distances while retaining a map of diagnostic internal features under magnification. Color intensity is classified as intense, and the bluish green hue sits evenly across the table with subtle zonal variation that contributes to its living, dynamic appearance. The sapphire has received heat treatment, a standard and stable enhancement that optimizes hue and clarity without compromising crystallographic integrity, and the polish is excellent, producing crisp facet junctions and high surface luster that support precise light return and contrast. These technical characteristics combine to yield a sapphire that performs exceptionally well in both solitary and multi stone settings, retaining a strong visual presence despite its modest carat weight.

The unique inclusions in this Montana sapphire are the principal signature that distinguishes it from material of other origins, and they are integral to the stones identity. At the microscopic level the sapphire displays oriented needle like inclusions that form delicate silk planes, most notable in the pavilion near the girdle, creating a soft internal sheen that modulates flash and face up tone. Interspersed among these silken needles are tiny euhedral crystal contacts, appearing as reflective pinpoints that catch the light selectively, producing a twinkling effect when the stone is rotated. There are also wispy feather like growth structures that produce gentle feathering along certain facet junctions, these features are shallow and stable, and they act to subtly diffuse the deepest color in a way that accentuates the stones bluish green character rather than detracting from clarity. Growth zoning is present and discernible as alternating bands of slightly different saturation, a trait commonly associated with Montana provenance, and it interacts with the mixed brilliant faceting to produce faint pleochroic shifts between greener and bluer tones as the stone is tilted. Under strong directional light the inclusion pattern creates a layered visual texture reminiscent of alpine lakes, a descriptive metaphor that nonetheless reflects the objective interplay of oriented silk, crystal inclusions, and zoning.

From a lapidary and setting perspective the faceting and inclusion suite of this sapphire demand and reward considered craftsmanship, and The Natural Sapphire Company has optimized presentation to emphasize the stones best attributes. The mixed brilliant cut whose crown facets are calibrated for scintillation, coupled with a pavilion designed to preserve depth, results in efficient light return and a lively spread of bright and dark contrast, which in turn makes the inclusion pattern more attractive by producing selective reflection from internal pinpoints. For mounting, a four prong setting cut to expose the table maximizes color saturation and liveability, while a slight elevation of the girdle will reduce the likelihood of contact with the shallow feather features during routine wear. For clients who prioritize absolute exemption of visible inclusions under magnification, a custom bezel with minimal metal coverage is recommended to protect the girdle and to enhance the stones apparent clarity. Care protocols are standard for heat treated corundum, avoiding sudden thermal shock and harsh chemicals, and routine inspection of the setting is advised to ensure the delicate silk planes are not abraded by inappropriate mechanical contact. Collectors seeking provenance will note the diagnostic inclusion pattern and zoning consistent with Montana origin, and the combination of intense bluish green color, very slightly included clarity at eye level, and excellent polish makes this sapphire a specimen grade choice for a connoisseur looking for a piece where internal features are a celebrated signature rather than a defect.