0.93 Ct. Greenish Blue Sapphire from Montana

This Montana sapphire presents as a transparent, round shaped gemstone weighing 0.93 carat, with precise dimensions of 5.87 by 5.83 by 3.84 mm. The hue reads as greenish blue, and the color intensity is classified as intense, producing a vivid and saturated face up appearance. The stone is fashioned with a mixed brilliant cut, combining the scintillation attributes of brilliant facets with proportioning that retains body color. Clarity is described as very very slightly included, evaluated at eye level, indicating that inclusions are minimal and do not detract from the immediate visual appeal. The polish has been judged excellent, resulting in crisp facet junctions and a lively surface that enhances light return. This sapphire has been heat treated, a common and stable enhancement for improving color uniformity and saturation in natural sapphires, and it is sourced from Montana, a locality noted for producing blue and teal tones with distinct regional character.

From a gemological and visual performance perspective, the mixed brilliant cut and the excellent polish work together to optimize both brilliance and color. The average diameter of this round is approximately 5.85 mm, and the pavilion and crown proportions yield a depth of 3.84 mm, which corresponds to a depth ratio of approximately 65.6 percent relative to the average diameter. This depth contributes to the stone s color saturation and gives the greenish blue tone a concentrated face up impression, particularly under direct and diffuse lighting. The high polish preserves crisp facet reflections, and the mixed cut creates multifaceted return that balances flash and overall sparkle. At 0.93 carat, the stone offers a comfortable presence in jewelry, showing well in solitaire settings and as a focal point in small cluster or halo designs, while maintaining a size that is practical for everyday wear.

When contrasted with laboratory grown sapphires, several distinctions are relevant to buyers who prioritize natural origin and geological provenance. Lab grown gems provide excellent color consistency, predictable supply, and competitive pricing, however natural sapphires offer attributes that are difficult to replicate in a laboratory, including unique inclusions and growth features that serve as a geological fingerprint, and subtle variations in color zoning that reflect the stone s formation history. This Montana sapphire exemplifies those natural characteristics, with a greenish blue hue and internal features that testify to its origin and the conditions under which it formed. Natural stones are finite by nature, and many collectors and connoisseurs place value on the rarity and individuality of naturally occurring specimens, particularly when origin can be documented. Heat treatment is disclosed, and it is a broadly accepted practice that enhances the inherent color without altering the stone s natural identity. For customers who seek a gem with a direct link to a specific mining region, and who value the narrative and material authenticity of a naturally formed crystal, this sapphire presents a compelling choice.

Practical considerations for setting, care, and provenance are straightforward. The mixed brilliant cut and excellent polish make this stone versatile for a range of settings, including low profile prongs that allow light to enter the pavilion, bezel settings that emphasize the stone s color and durability, and halo mounts that increase apparent size while preserving the stone s visual intensity. Routine care involves gentle cleaning with warm water, mild detergent, and a soft brush, avoiding harsh chemicals and extreme temperature changes. The Natural Sapphire Company provides full disclosure of treatments and origin, and we document our inventory to support informed selection. Our gem specialists can advise on metal choices and mount styles that complement the greenish blue tone and maintain the integrity of the sapphire over time. For those who prioritize the natural characteristics of a mined gem, this Montana sapphire represents a technically well executed example, combining desirable color, excellent polish, and clear provenance.