2.10 Ct. Bluish Green Sapphire from Madagascar

This transparent 2.10 carat asscher octagon bluish green sapphire measures 7.05 by 6.22 by 4.65 millimeters, and it presents a precisely faceted geometry that balances presence and proportion for a fine engagement stone. Cut in an asscher style adapted to an octagonal outline, this sapphire exhibits the characteristic stepped pavilion and truncated crown that define classical asscher faceting, and it benefits from an excellent polish that renders facet junctions crisp and reflective. The clarity grade is described as very slightly included, evaluated at eye level, and the inclusions are non disruptive to the stone s visual integrity. Color intensity is classified as intense, and the material is untreated, with no enhancement, offering natural color saturation and internal structure as delivered by its origin in Madagascar.

The asscher cut applied to this sapphire emphasizes broad, flat facets on the crown and pavilion, creating a hall of mirrors effect that showcases the stone s internal color planes rather than relying on aggressive scintillation. The step faceting geometry produces parallel facet arrays that return light in larger flashes, which in a bluish green sapphire intensifies the perceived depth and nuance of hue. With length and width of 7.05 and 6.22 millimeters respectively, and a measured depth of 4.65 millimeters, the stone displays a depth ratio of approximately seventy percent, a proportion that supports the asscher style by preserving color saturation while maintaining good light return. The excellent polish contributes to clean facet reflections and precise light performance, and the asscher octagon outline lends itself to highly controlled symmetry, which is important for centering the eye s perception of color and for predictable behavior when set in a ring.

Color is the defining characteristic of this sapphire, with a bluish green hue rendered in an intense color intensity grade, which combines strong saturation with a lively medium to slightly darker tone. Bluish green sapphires are corundum variants that frequently display pleochroism, and this material from Madagascar demonstrates a dynamic shift between blue and green color components as the stone is rotated under different lighting angles, a quality that gives engagement rings a personalized and interactive appearance. The absence of heat or other enhancements means the color is intrinsic to the crystal chemistry and trace element balance, and as such it maintains natural stability over time. From an optical perspective, corundum has a refractive index in the range of 1.762 to 1.770 and a modest birefringence around 0.008, parameters that contribute to a strong contrast between facet planes without excessive doubling, which complements the step cut s emphasis on larger, planar reflections.

Clarity is very slightly included when viewed at eye level, and this level of clarity is particularly compatible with an asscher step cut, since the larger facets allow inclusions to be evaluated against flat reflecting planes, making them easier to place out of a table focal area during cutting and setting. The inclusions are internal and do not reach the surface, and the excellent polish ensures that no surface reaching features interfere with secure setting. From a durability standpoint, corundum rates nine on the Mohs hardness scale, second only to diamond in common jewelry materials, and this intrinsic hardness, combined with the stone s substantial 2.10 carat weight and robust proportions, makes it suitable for daily wear as an engagement ring. Settings that protect the corners of the octagonal asscher form, such as low bezel treatments or four prong mounts with reinforced corner prongs, will maximize the longevity of the stone while preserving the faceting geometry and optical performance.

As an engagement choice, this untreated 2.10 carat asscher octagon bluish green sapphire from Madagascar represents a compelling balance of technical merit and emotional resonance. The asscher cut emphasizes clarity and internal color planes, offering a distinct aesthetic from brilliant cuts that is highly prized by connoisseurs who appreciate geometric form and controlled light return. The intense, natural bluish green color provides a unique and durable alternative to traditional diamond centers, and the stone s dimensions and weight offer a strong presence on the finger without appearing oversized. At The Natural Sapphire Company we pair such stones with custom design options and precise setting recommendations to retain the integrity of the cut and to protect the stone in everyday wear, and our team can advise on metal choices and mounting profiles that complement the asscher octagon geometry while enhancing the visual impact of the intense color. This sapphire is therefore an ideal engagement option for a buyer seeking technical excellence, verified natural provenance, and a distinctive yet enduring center stone.