4.11 Ct. Yellowish Green Sapphire from Madagascar

This transparent 4.11 carat oval yellowish green sapphire measures 11.33 by 8.27 by 4.75 millimeters, yielding a length to width ratio of approximately 1.37 and an overall depth that works out to about 48 percent relative to the average face dimensions. The gem is faceted in a mixed brilliant cut, combining a brilliant facet arrangement on the crown with more restrained step or modified facets on the pavilion to maximize both scintillation and color saturation. The cutting proportions emphasize a generous table and well angled crown facets that deliver strong light return, while the pavilion faceting channels light back through the body of the stone to intensify the yellowish green tone. Clarity is graded eye clean at eye level, which together with an excellent polish produces crisp facet junctions and lively facet contrast without visible inclusions disrupting the visual plane. Color intensity is classified as intense, producing rich olive to yellow green notes that display attractive depth across the oval surface, and the stone exhibits the subtle directional color behavior typical of corundum when viewed from different orientations. The sapphire has been heat treated, a standard and stable enhancement that refines color and clarity without compromising structural integrity. Origin is Madagascar, a source known for producing strongly colored, well crystallized sapphires.

For an engagement ring application this sapphire is particularly well suited, combining a substantial 4.11 carat presence with robust durability, sapphire being a Mohs hardness nine material capable of daily wear when properly set. The mixed brilliant cutting style provides a balance of lively scintillation and saturated color, making it visually impactful as a solitaire or enhanced by a diamond halo to increase apparent size and contrast. Recommended mounting approaches include four prong settings to maximize light entry and showcase the oval outline, low profile bezels for an active lifestyle, or fine milgrain settings to complement the stone vintage character while preserving the eye clean clarity. Heat treatment is stable for routine care, though standard precautions against thermal shock and harsh abrasives are advised. This particular Madagascar sapphire, with its precise dimensions, mixed brilliant faceting, intense color, and excellent finish, represents a technically refined and emotionally resonant choice for an engagement gem, and is offered by The Natural Sapphire Company with full specification for consideration in bespoke engagement ring designs.