1.79 Ct. Bluish Green Sapphire from Montana

This 1.79 carat cushion shape bluish green sapphire from Montana exemplifies the refined balance of hue, clarity, and cut that discerning buyers seek. Measuring 6.42 by 6.40 by 5.08 millimeters, this transparent gem presents an even table and a well proportioned outline that reads size efficiently on the finger, while preserving an intimate pavilion depth that intensifies its face up presence. The cutting style is faceted with a mixed brilliant design, combining brilliant cut facets on the crown and pavilion elements that promote lively scintillation with step influenced geometry that creates crisp contrast and controlled light return. Clarity is graded very slightly included evaluated at eye level, which in this material translates to minimal internal characteristics that do not detract from the gemetic transparency or its optical performance. The color is a delicate bluish green with faint color intensity, a tonal range highly characteristic of Montana sapphires, and the polish is excellent, delivering smooth facet junctions and razor sharp facet planes. This sapphire is without enhancement, an important attribute for collectors and connoisseurs, and it is offered through The Natural Sapphire Company with full disclosure of origin and treatment status.

From a lapidary perspective the mixed brilliant cut of this cushion sapphire is a purposeful choice that maximizes both brilliancy and color presentation. The brilliant facets on the crown capture and refract incident light into flash and scintillation, while the step like elements towards the girdle and pavilion establish strong contrast and guide light back through the table in a way that reinforces the bluish green hue. The gem has a relatively deep pavilion in relation to its diameter, produced by its 5.08 millimeter depth and 6.41 millimeter average spread, and this depth aids in concentrating color within the stone face up, compensating for its faint inherent saturation. Excellent polish enhances the optical interfaces, minimizing light diffusion at facet boundaries and increasing perceived transparency and brilliance. The symmetry of the cushion outline and the evenity of facet sizes contribute to a balanced interplay of light, producing consistent scintillation when the gem is set or worn. Because there has been no heat or diffusion treatment, the internal crystal lattice and trace element distribution remain in their natural state, which collectors will note in the stone’s subtle color zoning and natural pleochroism under directional light.

In practical jewelry design terms this sapphire’s bluish green tone will stand out in many settings due to a combination of its precise cut, excellent polish, and untreated origin. In white precious metals such as platinum and white gold, the coolness of the metal will emphasize the stone’s blue component and produce a crisp, modern aesthetic with high perceived brilliance. In yellow or rose gold, the warm metal will create contrast against the bluish green, making the color read more vivid to the eye and providing a classical, richly contrasted presentation. The mixed brilliant cushion is well suited to solitaire mounts where the faceting can be viewed unobstructed, and it also performs exceptionally as a center for halo designs, where surrounding melee can increase perceived size and accentuate the central hue. For settings that aim to maximize face up color, open gallery and low profile prong settings that allow light to enter the pavilion from multiple angles will yield the most luminous presentation. The combination of very slight inclusions that do not impede clarity, and an excellent polish that produces crisp facet reflections, ensures that the stone will deliver both visual impact and durability in everyday wear.

For the collector or designer seeking an untreated Montana sapphire that offers technical merit as well as wearable beauty, this 1.79 carat cushion presents a compelling option. The measured dimensions and mixed brilliant faceting provide efficient spread and lively optical performance, while the faint bluish green hue offers a refined, versatile color that can be emphasized or contrasted through metal choice and setting design. The Natural Sapphire Company is pleased to present this gem with full disclosure of its characteristics, including its no enhancement status, excellent polish, and clarity grade of very slightly included evaluated at eye level, details that matter to specialists and jewellers who demand precision in both gem selection and finished design.