1.34 Ct. Bi Color Sapphire from Montana

This one point three four carat, transparent, oval bi color sapphire from Montana is a gem that balances measured presence with versatile design potential. The stone measures six point one seven by five point five five by four point three nine millimeters, and the mixed brilliant cut imparts both lively sparkle and a well controlled face up appearance. The medium intense color intensity manifests as a refined bi color effect that shifts between warm golden brown and cooler slate tones depending on the angle of view and the mounting. The gem has an excellent polish which enhances light return and presents those color shifts cleanly, and the clarity is graded as very very slightly included when evaluated at eye level, indicating that small natural inclusions are present but do not detract from the gem’s beauty to a typical observer. The piece has been heat treated, a standard and stable enhancement for sapphires that improves color uniformity and saturation, and we at The Natural Sapphire Company are transparent about treatment status when guiding customers toward a responsible purchase.

From a gemological perspective the important variables are all favorable for an educated buyer seeking a high quality custom center stone. The mixed brilliant cut combines a faceting scheme that concentrates scintillation near the table with pavilion facet arrangement that supports depth of tone, and because the polish is excellent, facet junctions are clean and contribute to crisp light performance. The very very slightly included clarity grade means that under typical loupe and unaided eye inspection the inclusions are minimal, which supports both aesthetic appeal and long term durability. The medium intense color intensity is particularly valuable in a bi color sapphire because it allows the two tones to be perceived distinctly without one overpowering the other, creating depth and visual interest that changes with light source and body movement. The Montana origin places this sapphire within a well regarded regional tradition, known for producing stones with sophisticated, often subtle palettes and strong market appeal for collectors and designers who prize provenance alongside optical quality.

The oval shape and the one point three four carat weight make this sapphire especially well suited to custom jewelry applications where both presence and wearability are priorities. The oval silhouette provides a pleasing elongation that flatters ring wearers and scales attractively in pendants and drop earrings, while the specific dimensions translate well into standard prong, bezel, and custom halo designs because the length to width relationship is balanced and predictable. The moderate pavilion depth produces a rich face up color that reads well without appearing overly dark under typical indoor lighting, and because the stone sits with a reassuring depth, it adapts to secure settings that protect the girdle while still allowing the mixed brilliant facets to sparkle. For bespoke engagement rings, a simple four prong setting will emphasize the gem’s bi color character and mixed brilliant scintillation, while a surrounding halo of small accent stones will intensify perceived size and add contrast to the unique color interplay. For pendants, the stone’s oval form and weight create an elegant focal point that moves and reveals different color facets as the wearer turns, an effect that is especially attractive in designs that allow light to pass through the pavilion.

When advising clients on bespoke work, The Natural Sapphire Company recommends considering metal color and setting style to enhance the gem’s bi color nature and medium intense saturation. Warmer metals such as yellow or rose gold will draw out the golden brown notes, while white gold or platinum can emphasize the cooler slate tones, offering design flexibility that suits a wide range of personal tastes. The fact that the stone is heat treated is an advantage in custom manufacture because the color is stable under normal wear conditions and polishing, and the very very slightly included clarity means the stone will respond well to bezel or prong work without unexpected surprises. For buyers who appreciate documented provenance and technical transparency, this Montana bi color sapphire presents an attractive combination of size, shape, and optical character that makes it ideal for a one of a kind commission. If you would like assistance translating this gem into a finished piece, The Natural Sapphire Company can provide design sketches, CAD renderings, and metal recommendations to ensure the finished item highlights the stone’s best qualities, and our team is available to guide you through setting choices that balance aesthetics and secure mounting.