0.86 Ct. Bi Color Sapphire from Montana

This transparent 0.86 carat oval bi-color sapphire presents a balanced combination of precise proportions and refined finishing. The gem measures 5.50 x 5.07 x 4.01 millimeters, an ideal size for a range of mounting styles, and is fashioned in an oval outline to maximize face-up presence without excessive finger coverage in wearable pieces. The mixed brilliant cut employed blends pavillion and crown facet styles to produce both scintillation and depth of tone, allowing light to be returned as lively flashes while maintaining the gem’s body color. Clarity is graded as very very slightly included, evaluated at eye level, which indicates only minimal inclusions visible under close inspection and an otherwise clean appearance to the unaided eye. The polish is excellent, yielding crisp facet junctions and a smooth surface that enhances both light performance and the perceived quality of the sapphire.

The defining aesthetic attribute of this stone is its bi-color character, which presents a complementary interplay of cooler violet and warmer peach tones across the table and crown when viewed from different angles. With a medium light color intensity, the hue is neither faint nor overly saturated, allowing the dual tones to read distinctly without obscuring one another, and supporting versatility in design. The mixed brilliant faceting distributes color and light so that the bi-color zoning becomes a controlled optical feature rather than an irregular patch, creating dynamic flashes of color as the gem moves. Because the sapphire is transparent and well-polished, its internal reflections pick up and amplify both the violet and peach elements, which causes the gem to catch attention in settings where contrast and movement are present. In a fine jewelry context, this bi-color effect will stand out against both warm and cool metal tones, producing different visual emphases that can be selected to complement the intended design.

From a practical and provenance perspective, this sapphire originates from Montana, a source known for producing stones with distinctive, natural color variations and stable crystalline qualities. The gem has been heat treated, an accepted and stable enhancement that optimizes color uniformity and clarity without compromising structural integrity when set and worn under normal conditions. At 0.86 carat and with a depth of 4.01 millimeters, the stone balances a pleasing table surface with sufficient depth for durable faceting, making it well suited for rings, pendants, and earrings, or for incorporation into multi-stone compositions. Design considerations to accentuate the bi-color character include open-backed or gallery-free settings to allow light ingress, selective metal choices to shift perceived warmth or coolness of the hues, and prong or bezel styles that expose the crown for maximum scintillation. The Natural Sapphire Company presents this gem as an option for commissions and finished pieces where a cultured, yet naturally expressive, color presentation is desired, and where precise cutting and finishing are priorities in showcasing a sapphire that will stand out in any jewelry setting.