1.64 Ct. Yellowish Orange Sapphire from Montana

This 1.64 carat oval sapphire from Montana exemplifies precision lapidary work, with dimensions of 7.71 by 6.40 by 3.81 millimeters, a length to width ratio of approximately 1.20, and a depth proportion that yields an optimal balance between face up brilliance and body color. The stone presents a transparent clarity, graded as very very slightly included when evaluated at eye level, allowing for clean light transmission and minimal visible obstruction to internal reflection. Color presents as a yellowish orange with a medium intense saturation, a hue that reads warm and lively in daylight and lamp light, and a heat treatment enhancement has been applied to stabilize and evenly distribute the color without obscuring the innate character of the Montana origin. The Natural Sapphire Company offers this gem with an emphasis on documented provenance and precise description, so buyers who seek technical accuracy will find all key parameters disclosed.

The faceting is a mixed brilliant configuration, engineered to marry the scintillation dynamics of brilliant geometry with the color retention and depth control offered by modified pavilion planes. On the crown the facet layout employs a radial brilliant arrangement, with crown facets cut to promote controlled light dispersion and pinpoint scintillation across the table and upper facets. The pavilion incorporates modified facets that act as directional light traps, returning light to the table in broad flashes while preserving saturation of the yellowish orange body color. The oval outline is true and symmetrical, the girdle consistent in thickness to ensure predictable setting behavior, and the culet execution eliminates unwanted light leakage, so the net result is a stone that maximizes visible fire and scintillation without compromising color intensity.

Craftsmanship details speak to meticulous facet junctions and an excellent polish, attributes that materially affect optical performance. Facet junctions are crisp and meet with minimal abrasion, which reduces stray diffusion and preserves contrast between dark and light facet planes. The polish is described as excellent, which in practice means the surface finish permits full spectral return without interference from polish haze or microabrasions. The mixed brilliant strategy here optimizes critical factors, including table proportion, crown height and pavilion angle relationships, to control the interplay between brilliance and body tone. The result is measurable in viewing, where under direct illumination the pavilion engineering produces broad flashes and a lively scintillation texture, and under softer light the medium intense body color remains evenly distributed across the face up area.

For the technical buyer and the jeweler concerned with setting geometry, the stone’s dimensions and cut proportions are well suited to a variety of fine jewelry applications, from classic solitaire rings to bespoke halo and three stone arrangements, where the oval geometry and mixed brilliant faceting enhance both optical performance and practical mounting considerations. The length to width ratio makes the sapphire visually elongating when set in a ring, while the depth and pavilion design permit confident bezel and prong settings without excessive loss of face up color. As with all pieces presented by The Natural Sapphire Company this sapphire is described with emphasis on measurable characteristics, heat treatment disclosure, and origin, enabling connoisseurs to assess how the faceting geometry, clarity, polish and color intensity will perform in intended use.