0.42 Ct. Bi Color Sapphire from Montana

This beautiful transparent 0.42 carat round bi color sapphire measures 4.50 by 4.49 by 2.95 millimeters, and features a mixed brilliant cut that maximizes lively facet return and scintillation. The stone is graded very very slightly included at eye level which means it is visually clean to the unaided eye while retaining natural internal character that is common to fine sapphires. Color is described as intense in saturation, exhibiting a dynamic bi color appearance that shifts across warm pink and cool violet depending on viewing angle and lighting, a trait that adds visual interest and rarity. Polish is excellent, the stone is heat treated which is a standard and stable enhancement used to intensify color and clarity, and origin is Montana, a locality admired by connoisseurs for producing uniquely hued sapphires with distinct character. These technical attributes combine to create a gem that balances brilliance, color play, and durability.

This sapphire is exceptionally versatile for custom jewelry, and it lends itself equally well to classic and contemporary settings. In a solitaire ring the round mixed brilliant cut provides an elegant focal point with ideal symmetry for a prong or bezel mount, and the stone also performs beautifully in halo settings where a ring of smaller diamonds can amplify perceived size and color contrast. For earrings the matched round shape makes a refined pair of studs, or for a single pendant the bi color nature offers captivating movement when suspended from a simple bail. Designers may consider three stone compositions, asymmetric cluster pieces, or modern tension mounts to showcase the color shift. Metal choices such as platinum, 18 karat yellow gold, 18 karat rose gold, or 14 karat white gold will alter the perceived warmth of the sapphire, and bezel settings can protect the girdle while prong mounts maximize light entry.

For the educated buyer this Montana bi color sapphire represents an appealing combination of rarity, optical performance, and practical wearability. Corundum is robust for everyday jewelry on the Mohs scale of hardness nine, and the disclosed heat treatment is both common and stable when set and worn normally. The Natural Sapphire Company can assist with design consultation, metal selection, and secure mounting to ensure the stone is showcased to its fullest potential, and we can arrange professional gemological documentation upon request. Whether crafted into an engagement ring, a statement pendant, or a pair of bespoke earrings, this gem offers provenance, technical quality, and aesthetic versatility that will satisfy collectors and designers alike.