5.17 Ct. Yellowish Green Sapphire from Madagascar

One transparent 5.17 carat cushion shape yellowish green sapphire is presented with exacting detail by The Natural Sapphire Company, dimensions 9.71 by 8.63 by 6.37 mm, mixed brilliant cut, intense color intensity, and a clarity grade of very very slightly included when evaluated at eye level. The stone is unenhanced, with an excellent polish that produces even facet reflections and lively brilliance across the table and crown. The cushion outline combines a softly rounded profile with well defined corner symmetry, creating a balanced presentation that is comfortable for a wide variety of mounting styles. At 5.17 carats this sapphire delivers substantial visual presence without requiring an oversized setting, making it well suited to both solitaire and more intricate design approaches.

Optical characteristics are precise and deliberate, the yellowish green hue presents a consistent and intense saturation that reads vibrantly in natural daylight and under controlled indoor lighting. Transparency is high, allowing light to penetrate and refract across the mixed brilliant faceting, which optimizes scintillation while preserving the stone for everyday wear. The very very slightly included clarity grading indicates only minor natural internal features, none of which detract from the overall appearance at a typical viewing distance. These small inclusions can act as natural identifiers, confirming the gem as a product of geological processes rather than laboratory manufacture, and they contribute to the stone long term individuality and provenance.

Origin and treatment status are key attributes for collectors and designers, this sapphire originates from Madagascar, a locale known for producing sapphires with distinctive and appealing hues. The gem is reported as no enhancement, a characteristic that is increasingly valued in the market for its rarity and honesty of color. Untreated natural sapphires display color complexity that arises from trace element chemistry and growth conditions deep within the host rock, producing subtle variations in tone and pleochroic behavior that cannot be convincingly replicated by uniform laboratory growth. The Madagascar origin and unenhanced status together affirm the stone as a piece with geological history and lasting appeal.

When compared to lab grown sapphires, natural stones offer several definable advantages that are relevant to both aesthetic and investment minded buyers. Natural sapphires carry unique internal features that document their formation, providing each stone with a fingerprint that supports provenance and traceability. This uniqueness often translates into stronger long term value retention, because rarity and natural origin are primary drivers of market demand. Color in natural sapphires can display layered complexity and directional variation which interact with cut to create dynamic visual effects, whereas lab grown material tends to be more uniform and predictable. Both natural and lab grown corundum share the same fundamental hardness and suitability for jewelry, however natural, unenhanced sapphires are typically more sought after by collectors who prioritize original geological character and documented origin.

The Natural Sapphire Company can provide additional high resolution imagery, detailed light performance observations, and guidance on setting options to ensure the sapphire is presented to optimal effect. We can also assist with certified appraisal pathways and bespoke design work for clients who wish to retain the stone as a centerpiece. For buyers seeking a gemstone with demonstrable origin, natural complexity, and unaltered color, this 5.17 carat yellowish green cushion sapphire from Madagascar represents a considered choice, combining technical quality with the enduring qualities that define natural corundum.