0.48 Ct. Blue Sapphire from Montana

This transparent blue sapphire from Montana weighs 0.48 carat and measures 5.96 x 3.64 x 2.46 mm, presenting a mixed brilliant cut and an excellent polish. Clarity is described as very very slightly included when evaluated at eye level, and the stone has undergone standard heat treatment to optimize color and clarity. The overall color impression is a cool to neutral blue with intense saturation, and the tone reads as medium to medium dark, allowing both strong face up color and lively internal sparkle due to the cut. The mixed brilliant faceting strategy enhances return of light while maintaining a pleasing table view, making the gemstone suitable for a refined, understated setting.

When compared to classic Kashmir sapphires, this Montana example lacks the distinctly velvety cornflower bloom that defines Kashmir material, instead offering a cleaner, crisper blue with more pronounced brilliance. Versus Ceylon sapphires from Sri Lanka, which often show a lighter, brighter medium blue with a sunny warmth, this Montana stone carries a slightly cooler temperature and greater depth of color at similar sizes. Compared to Burmese material that can trend toward a deep, royal blue, the Montana sapphire maintains a fresher, more transparent character with less tendency toward inky saturation. Australian sapphires frequently exhibit darker, more greenish blue tones, which contrasts with this gem that reads as a purer blue without strong green modifiers. Malagasy sapphires display a broad range of hues and saturations, and while some Madagascan stones can approximate the intensity seen here, the Montana example stands apart for its crisp, cool hue and polished brilliance. The Natural Sapphire Company provides this description to clarify origin and treatment history, and to place the gem's hue and tone within the context of well known sapphire sources, noting that Montana material often offers a distinct combination of clarity, cool to neutral blue hue, and lively cutting style that differs from the velvety or inky characteristics of other regions.