0.66 Ct. Bluish Green Sapphire from Madagascar

This transparent 0.66 carat bluish green sapphire, presented by The Natural Sapphire Company, offers a rare combination of intense color, clean visual clarity, and completely natural origin. The stone measures 6.07 x 3.81 x 2.60 mm, an elegant emerald cut rectangle that reads slightly elongated and very balanced in proportions. Clarity has been graded as very very slightly included at eye level, which for an educated buyer translates to exceptional transparency to the naked eye, minimal internal features that do not interrupt the gem face up, and high visual appeal in a range of lighting conditions. The color is described as intense with a distinct bluish green hue, and because the sapphire has no enhancement, the tone and saturation are wholly natural, a factor that materially increases value for collectors and connoisseurs who prioritize untreated gemstones. The polish is excellent, which enhances the surface smoothness, provides crisp facet junctions, and maintains the gem surface integrity necessary for long term wear.

The emerald cut itself plays a critical role in how this sapphire interacts with light, and this is particularly important for a stone with vivid color and high transparency. With broad step facets and a large open table, the cut emphasizes the depth and purity of the bluish green color, producing a refined hall of mirrors effect that reveals linear flashes and layered reflections instead of scattered brilliance. This controlled light return highlights color saturation and internal clarity rather than masking them with excessive scintillation, making the gem especially attractive in settings where color dominance is desired. Because the pavilion and crown are well proportioned for these dimensions, light enters through the table, reflects along the step facets, and returns with a strong, even face up color, while the excellent polish ensures those reflections are clean and sharp. For buyers considering mounting options, a bezel or low profile four prong setting will protect the faceted edges while allowing the table and step facets to present their full color and reflective character, and a white metal surround will accentuate contrast, while a warm metal can deepen the green tone. This Madagascar origin sapphire, untreated and carefully cut, represents the type of responsibly sourced, gemologically sound choice that discriminating buyers seek from The Natural Sapphire Company.