0.40 Ct. Greenish Blue Sapphire from Montana

This 0.40 carat, emerald cut greenish blue sapphire from Montana presents an exceptional combination of color intensity and precision cutting, qualities that educated buyers recognize as drivers of both aesthetic appeal and market value. At 0.40 carat, this gem occupies an important weight category where rarity begins to intensify for Montana sapphires displaying an intense color. The measured dimensions of 5.00 by 3.54 by 2.38 millimeters reflect a well proportioned emerald cut that optimizes color distribution while preserving weight, a careful balance that enhances its per carat value. The emerald cut emphasizes the stone s clarity and color plane, allowing the greenish blue hue to display with uniform depth across the table, and the excellent polish further elevates light return and surface luster. The clarity is described as very slightly included, evaluated at eye level, indicating inclusions that do not detract from visual performance at normal viewing distances, and this level of clarity paired with intense color is particularly desirable among collectors and setters who seek clean face up appearance without sacrificing natural character.

From a gemological and commercial perspective the 0.40 carat weight is meaningful for several reasons. Larger Montana sapphires with intense greenish blue tones and eye level clarity are comparatively uncommon, so a well cut 0.40 carat stone can command a premium relative to smaller sizes with similar attributes. Heat treatment is disclosed, a widely accepted and stable enhancement that improves color uniformity and is fully compatible with responsible grading and long term stability. Origin from Montana contributes provenance value, as Montana sapphires are prized for their unique spectrum of blue to greenish blue tones and for their historical and geological distinctiveness. At The Natural Sapphire Company we provide transparent details about weight, cut, clarity, treatment, and origin so buyers can assess both the immediate desirability and the longer term value profile. For jewelers and private buyers this gem offers versatility for refined solitaire or halo settings, while its durable corundum nature and excellent polish ensure an enduring, lively presence in finished jewelry. If you are seeking a compact but impactful sapphire that balances rarity, eye appeal, and honest disclosure, this 0.40 carat Montana emerald cut stone makes a compelling choice.