6.25 Ct. Bluish Green Sapphire from Madagascar

This 6.25 carat, C.Dunaigre certified Greenish Blue sapphire from Madagascar presents as an asscher cut octagonal stone, with precise dimensions of 10.76 x 10.59 x 6.00 mm. The asscher cut is executed with classic step faceting, producing concentric rectangles on the pavilion and crown that emphasize internal clarity and color zoning, while the truncated corners create an elegant octagonal silhouette. The table is broad and the pavilion exhibits deep step facets that deliver controlled returns of light and pronounced contrast, a desirable attribute for collectors who value crisp facet delineation over brilliant style scintillation. Clarity is graded Very Very Slightly Included at eye level, which in combination with complete transparency and an excellent polish results in clean facet junctions and lively windowing where the vivid bluish green color is revealed. Enhancement is none, confirming the natural state of the material, and the stone is supplied with a laboratory report from C.Dunaigre that documents origin, weight, dimensions, and the absence of treatments.

Compared to lab grown sapphires, this natural Madagascar specimen offers distinct advantages that appeal to technically minded buyers, collectors, and investors. Natural formation under variable geological conditions imparts complex trace element signatures and microstructural features, including fine zoning and natural strain patterns, that produce richer pleochroism and subtler color shifts under different lighting, characteristics that laboratory synthesis finds difficult to replicate with the same variability and nuance. The lack of enhancement further preserves the original crystal lattice and trace element distribution, which is important for spectroscopic identification and for retaining long term rarity value. While lab grown stones can offer predictable color and lower cost, they lack provenance and the unique growth history that establishes long term collectibility. The C.Dunaigre certification included by The Natural Sapphire Company provides verified origin and treatment status, supporting both authentication and future resale. For connoisseurs seeking a technically superior asscher cut sapphire with vivid bluish green saturation, excellent polish, and documented natural origin, this Madagascar gem represents a rare combination of cutting precision and geological individuality.