0.73 Ct. Bi Color Sapphire from Madagascar

This 0.73 carat oval bi color sapphire is a finely presented example of what discriminating buyers seek, with precise dimensions of 5.56 x 4.53 x 3.44 mm and a mixed brilliant cut that balances scintillation with depth of color. The stone is transparent, and under normal viewing it has a clarity grade of very slightly included evaluated at eye level, which means that minor natural inclusions are present but do not detract from overall beauty or durability. The polish on this gem is excellent, and the facet junctions created by the mixed brilliant design allow light to return with lively flashes while preserving the integrity of the bi color zoning. This combination of cut, clarity, and finish produces a gemstone that is technically well executed and visually compelling, suitable for settings that demand both optical performance and refined craftmanship.

Color is the defining attribute of this sapphire, and its intense color intensity sets it apart. The bi color character presents a dynamic interplay between deep teal blue and a yellow green face up area, creating a shifting palette that is especially appealing when the gem is set to rotate or when it is viewed in moving light. Such a vibrant and demonstrable change in hue makes the sapphire particularly valuable to educated buyers, because color variability that remains vivid and saturated is relatively uncommon and highly prized. Origin from Madagascar contributes to the gemology story, as Madagascar is known for producing sapphires with complex and attractive color properties. Enhancement by heat treatment is disclosed, which is a stable and widely accepted method to improve color and clarity, and it does not diminish the gem from a gemological perspective when properly reported. The combination of intense color, transparency, and the bi color phenomenon enhances optical depth and eye appeal, assuring that this sapphire will stand out in any jewelry setting, whether bezel mounted, prong set, or used as a focal point in a custom design.

From a practical and investment perspective, this piece is an appealing choice for designers and collectors alike, because it integrates aesthetic distinction with sound gemological fundamentals. The very slightly included clarity means that the stone offers a good balance between natural character and clean appearance, making it durable for daily wear when set with appropriate protection. The mixed brilliant cut optimizes brilliance without sacrificing the dramatic color zoning, so the gem will perform well in pendants that catch ambient light, in rings that are oriented to show both tones, and in bespoke pieces where color change is a design feature. For mounting, consider settings that allow light access to both the table and pavilion facets to maximize color play, and choose metal colors that complement the teal and green tones, such as warm yellow gold for contrast or white metals for a cooler presentation. Care should follow standard practices for heat treated corundum, avoiding sudden temperature shocks and harsh chemicals, and recommending routine professional inspections to ensure the setting remains secure.

At The Natural Sapphire Company we emphasize transparent disclosure and responsible sourcing, and this Madagascar origin sapphire is offered with full details regarding enhancement and grading to help buyers make informed decisions. For a client who values a gemstone that communicates both rarity and technical quality, this 0.73 carat bi color sapphire represents an opportunity to own a distinct and vibrant stone that will remain a focal point in jewelry for years to come. Our gemological team can assist with mounting suggestions, custom design options, and certification pathways, ensuring that the final piece not only highlights the intense color and exceptional polish, but also aligns with the provenance and value expectations of the educated buyer.