1.54 Ct. Yellowish Green Sapphire from Montana

This transparent 1.54 carat cushion shape yellowish green sapphire represents a refined example of color and craftsmanship, suitable as a centerpiece in a high end gemstone collection. The stone measures 6.90 x 6.02 x 4.52 millimeters, and is executed in a mixed brilliant cut that balances pavilion and crown faceting for both scintillation and color concentration. The clarity is described as very very slightly included evaluated at eye level, indicating that the gem is essentially eye clean while retaining natural internal character that is visible only under magnification. The color displays a medium intense yellowish green tone, and the surface finish is of excellent polish. The stone has been heat treated, a standard and stable enhancement for sapphires, and it is sourced from Montana, a locality known for producing uniquely hued material. The Natural Sapphire Company presents this sapphire with full disclosure of its key technical attributes and origin.

The color dynamics of this sapphire are central to its appeal to collectors and connoisseurs. At face up view the gem shows a balanced yellow and green interplay, with the medium intense saturation providing a vivid but not overpowering appearance. Under varied lighting the stone may exhibit subtle shifts between yellow and green nuances, a behavior common to many sapphire varieties and often associated with pleochroic properties. The mixed brilliant cut enhances this effect by creating a mosaic of reflections that reveal different color flashes as the stone is rotated. The proportions and pavilion depth contribute to the face up appearance, with a relatively deep pavilion that supports color concentration while maintaining lively reflections. These optical characteristics make the sapphire versatile for presentation in open settings that allow light circulation, and also desirable for collectors who appreciate specimens that reveal nuanced color behavior in different environments.

From a clarity and finish perspective the gem is notable for its high polish and minimal eye level inclusions. The clarity grade of very very slightly included evaluated at eye level indicates that the small internal features do not detract from the overall visual performance when viewed without magnification, and they provide confirmation of natural origin without compromising transparency. The excellent polish ensures crisp facet junctions and unobstructed light return, supporting both brilliance and the integrity of the mixed brilliant faceting scheme. The cushion outline offers a classic profile that balances vintage appeal with contemporary faceting precision. The dimensions and cut quality make the stone adaptable to a range of mounting styles, including four or six prong settings and bezel designs, and the gem will sit securely when set in a well engineered mounting. Sapphires rate nine on the Mohs hardness scale, and this durability combined with the stable nature of heat treatment makes the stone suitable for regular wear with normal care.

On the matter of provenance and stewardship, Montana sapphires occupy a particular niche within responsible collections due to their distinctive regional hues and geological character. The origin label adds contextual and comparative value for collectors and jewelers who document locality as part of a curated assemblage. The disclosure of heat treatment aligns with standard industry practices and is important information for long term care and appraisal. For collectors seeking a single stone that can serve as both a display piece and a wearable gem, this sapphire offers a rare equilibrium of color, clarity, and cut. The Natural Sapphire Company stands behind the description and is available to provide additional photographic references, viewing options, and guidance on custom mounting choices for collectors who wish to integrate this sapphire into a focused high end collection. Standard care recommendations include avoiding prolonged exposure to harsh chemicals, periodic professional cleaning, and routine inspection of the mounting once the stone is set, to ensure that the sapphire continues to present at its best over time.