1.23 Ct. Greenish Blue Sapphire from Montana

This 1.23 carat marquise shape greenish blue sapphire from Montana offers a rare combination of precise proportions and lively color, presented to you by The Natural Sapphire Company. Measuring 9.28 by 5.39 by 3.69 millimeters, the gem has been fashioned with a mixed brilliant cut to balance scintillation and color saturation, and it has an excellent polish that gives each facet a crisp, mirror like finish. The clarity is graded as very slightly included when evaluated at eye level, indicating minor internal features that do not detract from overall transparency or light performance. The color intensity is described as intense, a depth that emphasizes the unique greenish blue tone typical of fine Montana sapphires. This stone has been heat treated, a stable and widely accepted enhancement in the trade that improves color and clarity without compromising the natural character of the corundum.

From a gemological standpoint the sparkle of this sapphire arises from the inherent crystal structure and the cutter s skill. Sapphire is a form of corundum with a trigonal crystal lattice and a high refractive index near 1.76, and these physical properties govern how light is bent and returned to the viewer. The mixed brilliant cut used here combines a brilliant style crown with a pavilion designed for optimal light return, creating vibrant scintillation and lively flashes across the marquise silhouette. The elongated marquise outline channels light across the stone, producing a striking play of light along its length while minimizing dark zones when well cut. Pleochroism, a characteristic of many sapphires, can cause slight shifts between greenish and blue tones as the gem is turned, adding depth and motion to the visual effect. Paired with the excellent polish and the very slightly included clarity grade, this sapphire delivers a sparkle and presence that is both lively and refined. For an educated buyer seeking a durable, characterful, and technically impressive gem, this Montana marquise represents a compelling choice, and The Natural Sapphire Company stands ready to assist with certification and setting options to showcase its natural beauty.