1.56 Ct. Bluish Green Sapphire from Madagascar

This transparent 1.56 carat asscher octagon sapphire measures 6.01 x 5.77 x 4.68 mm, and it presents an asscher cut that is executed to exacting standards. The asscher style uses concentric step facets on the crown and pavilion, and cropped corners that create an octagonal outline, producing broad, mirror like planes rather than the pinpoint brilliance of a brilliant cut. This geometry emphasizes internal clarity and color zoning, so the very very slightly included clarity, evaluated at eye level, is an ideal pairing for this cut, allowing clean, uninterrupted color fields across the table. The polish is excellent, facets meet crisply, and facet junctions have been finished to minimize light leakage. The gem is unheated, no enhancement, the native color preserved, and this natural state from Madagascar contributes to both rarity and value. As presented by The Natural Sapphire Company this stone has been cut with a balanced crown height and pavilion angle strategy to bring face up color saturation while avoiding windowing, a deliberate compromise between weight retention and optical performance that favors color depth in step cut fashion.

Colorwise this stone reads bluish green with intense color intensity and a tone that reads medium deep to deep depending on light source. The asscher step planes display large flashes of teal and aquamarine depending on viewing angle and illumination, creating a dynamic but controlled color experience. Compared to sapphires from Sri Lanka, often described as Ceylon, this Madagascar stone is noticeably more saturated, Ceylon bluish greens tending toward a lighter, airier quality with more brightness and less chroma. Compared to Montana sapphires from the United States, which frequently exhibit a muted teal with a grayish or silvery undertone, this gem is cleaner and more vivid, lacking the earthy damping that characterizes many Montana material. Against Australian greenish blues the difference is also clear, Australian stones often showing inky, forest green leaning tones with heavier darkening at depth, whereas this Madagascar specimen retains clarity of hue and a livelier, more jewel like saturation. It does not parallel the pure cornflower or velvety blues associated with Kashmir, nor the rich, pure blue of classic Burmese stones, because the bluish green hue occupies a different point on the color wheel. Madagascar sapphires commonly produce intense, highly saturated teal to bluish green tones, and this example demonstrates that provenance signature, combining lively chroma with a clarity profile that permits the asscher cut to reveal broad, even color planes.

From a craftsmanship perspective the cutter has prioritized facet alignment and symmetry to optimize the step cut response. The crown facets form concentric rectangles that channel light into broad zones, and the pavilion steps have been proportioned to reflect those zones back through the table with minimal extinction. The relatively high depth gives the stone presence and enhances perceived saturation face up, a desirable outcome for a bluish green sapphire where too shallow a pavilion would risk windowing and a loss of color. The asscher cut also introduces a hall of mirrors effect along the step facets, which in stones with excellent clarity, as here, becomes a desirable optical signature rather than a distraction. For setting, the octagonal geometry and cropped corners are best protected by corner prongs or a bezel that follows the profile, and the choice of metal will influence perceived hue, white gold or platinum reinforcing the cooler, bluer aspect, and warm yellow gold nudging the stone toward its green undertones. As offered by The Natural Sapphire Company this unheated Madagascar asscher combines precise faceting technique, eye level clarity, and intense natural color, making it a compelling choice for connoisseurs who seek a technical, color forward gem with documented origin and meticulous finishing.