0.99 Ct. Greenish Blue Sapphire from Montana

This stone is a transparent, oval shape greenish blue sapphire weighing 0.99 carat with precise dimensions of 6.60 by 4.88 by 3.61 millimeters. The gem is cut in a mixed brilliant style, combining a faceted crown designed for focused brilliance with a pavilion that promotes return of light and controlled scintillation. Color is intense, presenting a rich teal leaning slightly toward blue with green undertones that remain vivid across different lighting conditions. The proportions yield a depth of approximately 63 percent, a balance that supports both face up presence and depth of color without appearing overly deep or shallow. Origin is Montana, a source known for producing sapphires with clear, cool tones and strong saturation, and the stone has been heat treated to enhance color uniformity and stability, a standard and accepted practice that maintains the integrity and durability of the material.

Clarity has been evaluated at eye level as very very slightly included, and the stone is visually clean to the unaided eye in typical viewing conditions. These minimal, fine inclusions do not interrupt the transparency or the path of light through the pavilion, allowing the mixed brilliant facet arrangement to operate optimally. The polish is excellent, with facet junctions and surfaces finished to a degree that maximizes mirror like reflections and fine scintillation. Taken together, the high clarity, precise mixed brilliant cutting, and superior polish create an overall impression of near flawlessness, so that from every angle the sapphire reads as luminous and gemlike. Viewed table up, the intense color centers and radiates toward the girdle, and when tilted the stone exhibits lively flash and change, a visual dynamic that emphasizes depth and saturation while preserving a clean, open window into the interior of the gem.

From a practical perspective this sapphire is well suited to a variety of settings and design treatments. At just under one carat and with classic oval proportions, it will work elegantly as a center stone in a refined solitaire or halo ring, and it also translates well to pendants and bespoke accent pieces where vivid color is the primary objective. Care is consistent with corundum class stones, with routine cleaning using warm, soapy water and a soft brush, and avoidance of harsh chemicals and extreme thermal shock. The heat treatment applied is stable and permanent under normal wear, and The Natural Sapphire Company stands behind the gem with documentation of origin and treatment for client confidence. The combination of Montana provenance, intense greenish blue color, mixed brilliant cut, very very slightly included clarity at eye level, and excellent polish results in a sapphire whose optical performance is compelling from every viewpoint, presenting a refined balance of color, brilliance, and clarity suitable for enduring jewelry designs.