0.42 Ct. Bluish Green Sapphire from Madagascar

This 0.42 carat bluish green round sapphire from Madagascar is a fine example of how color and proportions combine to create rarity and desirability. Measuring 4.51 by 4.35 by 2.86 millimeters with a mixed brilliant cut, the stone displays a well balanced face up appearance and a depth proportion of approximately sixty five percent that preserves lively brilliance while maximizing apparent size. The color sits in the medium intense range, a hue that is less common than classic blue or green sapphires at this weight and face up size. Bluish green tones of this quality are particularly uncommon in stones approaching half a carat, making this gem a rare choice for collectors and educated buyers who seek distinctiveness without sacrificing wearable scale. The mixed brilliant faceting pattern concentrates light return and scintillation toward the table, while the excellent polish enhances apparent clarity and sparkle under direct and diffused lighting.

Clarity is evaluated as very very slightly included at eye level, meaning the gem is eye clean with inclusions that are minimal and generally only visible under magnification. This level of clarity, combined with the excellent polish, delivers a clean, transparent appearance that benefits both bespoke jewelry settings and investment minded purchases. The sapphire has been heat treated, a common and stable enhancement used to improve color and clarity, and full disclosure of this treatment is provided. Origin is Madagascar, a well regarded source for gems with attractive, naturally occurring color varieties. The combination of origin, treatment transparency, and gemological grading is part of what informs value for a discerning buyer. At The Natural Sapphire Company we emphasize these technical details because they matter to long term value and collector appeal. For settings, this stone will read larger than its weight due to its proportions and mixed brilliant cutting, and it is particularly striking in an open setting that allows light to reach the pavilion and reveal the bluish green nuance. Whether you are selecting a unique center stone for a delicate ring, a pendant that highlights color, or a collector piece that fills a specific color niche, this Madagascar bluish green sapphire is a rare and well documented option worth close consideration.