0.31 Ct. Bi Color Sapphire from Montana

This transparent bi color sapphire presents as a round shape weighing 0.31 carat, with precise dimensions of 4.00 x 4.00 x 2.63 millimeters. The gem is fashioned with a mixed brilliant cut, combining features of faceting that balance table brilliance with pavilion dispersion. Clarity is graded as very very slightly included when evaluated at eye level, indicating negligible internal characteristics that do not affect visual performance to the unaided eye. Color is classified with medium intensity, and the stone displays a distinct bi color appearance that shifts subtly across the crown when the gem is viewed from different angles. The surface finish is of excellent polish, producing clean facet junctions and crisp light return. Enhancement disclosure is heat treated, the standard and stable treatment for sapphire, and the material originates from Montana, a source known for producing sapphires with uniquely American color expressions. This description and grading reflect the assessment performed for the inventory at The Natural Sapphire Company.

Optical and practical attributes of this sapphire support a variety of design applications. The mixed brilliant cut is intended to maximize scintillation in smaller diameters while preserving face up weight and color presence. The medium color intensity allows the bi color zones to remain visible without overwhelming darkness, making the stone suitable for both solitaire and multi stone settings where interplay of color is desirable. Transparency is unobstructed, so light passes through the crown and pavilion to create lively sparkle and colored flashes. The very very slightly included clarity grade denotes inclusions that are minute and internal, likely requiring magnification for routine observation. Those inclusions can act as natural fingerprinting features for identification without compromising durability. The excellent polish further enhances light performance and facilitates secure setting work, as polished girdles and well executed facets reduce the risk of chipping during fabrication. Heat treatment is stable and permanent under ordinary wear conditions, and the Montana origin contributes a provenance that many designers and clients find meaningful for its geological context.

The bi color character and the exceptionally clean appearance at eye level invite a considered, romantic narrative that aligns with the gemological traits. Imagine two adjacent skies converging in a single horizon, a cooler blue settling into a softer green, a visible transition that mirrors the movement from separate paths to a shared course. The medium intensity of the color is like a quiet declaration, present without loudness, visible in daylight and intimate under lamplight. The very very slightly included clarity becomes part of that story as well. The tiny internal features are like the small, honest marks and memories that accompany any long term partnership. They are not flaws to be hidden, but evidence of natural formation, unique identifiers that make each stone singular. Origin in the wide open landscapes of Montana lends a backdrop to the romance, a place of broad skies and enduring geology, suggesting a relationship rooted in place and time. This sapphire therefore reads as both a refined gemological object and a discreet narrative device, its bi color field and near flawless face up appearance capable of representing both change and continuity.

For practical considerations The Natural Sapphire Company recommends routine care consistent with corundum family gemstones. Clean the stone with warm soapy water and a soft brush for regular maintenance, and avoid exposure to harsh chemicals and prolonged ultrasonic cleaning if the setting conceals potential stress points. Given the 4.00 millimeter diameter and 2.63 millimeter depth, setting options can include a low profile bezel for daily wear, a secure prong mount to show web face, or a halo design that increases visual presence while distributing protective stress. The gem has been evaluated and documented for its cut, color intensity, clarity at eye level, polish quality, heat treatment enhancement, and Montana origin, and these attributes are disclosed clearly to support design decisions and appraisal. The Natural Sapphire Company stands by transparent description and provenance, and we provide the technical information required for designers, jewelers, and clients to integrate this bi color sapphire into considered, enduring pieces.