0.58 Ct. Yellowish Green Sapphire from Madagascar

This item is a transparent 0.58 carat round yellowish green sapphire with precise dimensions of 4.90 x 4.93 x 3.26 mm, cut in a mixed brilliant style and finished with an excellent polish. The weight of 0.58 carat sits just above the half carat threshold, and that slight additional weight has a measurable effect on face up presence and market value, because carat weight in corundum typically influences price on a non linear basis. The stone presents a balanced table and pavilion relationship, with an overall depth of approximately 66 percent, which supports strong light performance for a mixed brilliant cut and contributes to a lively, scintillating face up appearance despite the very light color intensity. For buyers who appreciate measured proportions, the combination of a well executed mixed brilliant cut and an excellent polish means that this 0.58 carat sapphire offers more visual impact than many similarly weighted stones that have weaker cutting quality, so the face up value is enhanced by precision cutting and a clean finish.

Clarity for this sapphire is graded as slightly included when evaluated at eye level, which in practice means small natural features are present but do not materially detract from the gem's overall transparency or brightness. Slight inclusions are typical in natural sapphires and can serve as indicators of natural origin, while the excellent polish and mixed brilliant facets tend to mask small internal features through movement and reflected light. The color is a very light yellowish green, a delicate and subtle hue that reads differently under warm lighting versus cool lighting, and that very light tone makes the presence of weight and cut especially important because heavier and well cut stones present a more substantial face up color even at modest saturation. This sapphire has been heat treated, a widely accepted and stable enhancement that improves color uniformity and can reduce the visibility of inclusions, and the specimen originates from Madagascar, a source known for producing a diverse range of sapphire colors and for supplying material that responds well to standard heat treatments.

Weight is a primary driver of rarity and pricing in sapphires, and a 0.58 carat round has significance beyond its numeric value because larger weight classes occur less frequently in clean, well cut material with even color, making stones in this size attractive to both jewelers and private collectors. Per carat prices do not scale linearly, so a modest increase in weight can translate into a disproportionate increase in value when color and clarity remain favorable, and in this case the combination of near half carat weight, pleasing proportions, and excellent polish positions this gem as a premium choice within the very light color range. For practical gem setting and design considerations, the round shape and mixed brilliant cut provide versatility, and choosing a setting that complements the yellowish green tone will optimize perceived color and value, for example a warm gold mounting or a diamond halo can intensify face up color and create a stronger visual presence. The Natural Sapphire Company offers full disclosure on enhancements and origin information, and we are available to advise on settings that maximize the aesthetic and monetary value of this 0.58 carat Madagascar sapphire, and we can assist with detailed measurements, imagery, and recommendations for certification if desired, ensuring an informed purchase for an educated buyer.