1.65 Ct. Bluish Green Sapphire from Montana

This specimen is a transparent 1.65 carat radiant shape bluish green sapphire, with dimensions 8.52 x 5.54 x 3.79 mm, a radiant cut, a clarity grade of very slightly included evaluated at eye level, medium color intensity, and an excellent polish, no enhancement, origin Montana, offered through The Natural Sapphire Company. The radiant cut is an engineered compromise between the brilliance of a round brilliant and the architectural outline of an emerald, incorporating trimmed corners and a mixed faceting scheme with small, precise brilliant style facets across the crown and pavilion, and flattened step like facets along the shoulders. The result is a faceting framework that optimizes both internal reflection and scintillation while preserving an elongated face up presentation. Excellent polish indicates that each facet plane meets smoothly and uniformly, that facet junctions are crisp, and that light is allowed to cross the polished surfaces with minimal scatter, all of which translate to superior face up brightness and lively flash from movement.

Color is the defining attribute of this sapphire, described as bluish green at a medium intensity, a hue that reads as teal or sea green depending on viewing angle and light source. Corundum often exhibits pleochroism, and this stone displays subtle shifts between greener and bluer tones as the stone is rotated, a characteristic that the cutter has respected through facet orientation and depth control. The medium intensity preserves a pleasing balance between saturation and light return, neither overly dark nor washed, so the gem remains lively in a variety of settings. Montana origin contributes to the gemological profile, as sapphires from that region are known for their distinctive cool greenish blues and their frequent occurrence as untreated material. The absence of enhancement reinforces the authenticity of the color, meaning the hue is natural to the crystal lattice rather than introduced or intensified by heat or other treatments.

From a clarity and cutting perspective the grade very slightly included evaluated at eye level denotes an eye clean appearance with inclusions that are minor and do not detract from the gem visually under normal inspection. These inclusions are consistent with natural formation and are often useful as natural fingerprints that corroborate origin and ensure that the stone is natural and untreated. The cutter has executed the radiant geometry with attention to pavilion angles and crown height so that the medium color and modest depth are translated into optimal saturation and strong return of white light. Precision in facet junctions and symmetry ensures that the stone exhibits even scintillation rather than isolated bright spots, and the excellent polish prevents micro abrasion which could otherwise reduce sparkle over time. Corundum ranks nine on the Mohs hardness scale and is exceptionally resistant to abrasion, making this sapphire suitable for frequent wear provided that settings are designed to protect vulnerable corners. A secure setting in platinum or 18 karat gold using strong prongs or a partial bezel will protect the trimmed corners of the radiant profile while allowing the faceting to perform to its potential.

This sapphire is a natural candidate to become a generational heirloom because it combines intrinsic rarity, durable material properties, and considered craftsmanship. Its untreated provenance from Montana enhances provenance value, and its eye clean clarity together with a medium bluish green color that is both distinctive and versatile ensures enduring aesthetic appeal. At 1.65 carat with balanced dimensions this gem adapts well to a variety of timeless settings from a classic solitaire ring to a pendant designed to be worn close to the heart. To ensure longevity across generations it is advisable to set the stone in a secure mounting, to schedule periodic inspections to confirm prongs and mount integrity, and to perform gentle cleaning with warm water and mild detergent followed by drying with a soft cloth. The Natural Sapphire Company provides documentation and expertise to accompany the gem, including provenance notes and independent evaluation where available, and we can advise on design and engineering choices that will protect the stone mechanically while showcasing its color and cutting. With proper setting, routine care, and documented provenance this untreated radiant sapphire is engineered by nature and refined by skilled cutting to deliver both immediate beauty and lasting legacy.