Accent Stones Bluish Green Sapphire Ring 1.55 Ct., 14K Yellow Gold

This ring centers a transparent 1.55 carat cushion shaped bluish green sapphire, with exact dimensions of 6.53 millimeters by 5.72 millimeters by 4.52 millimeters, cut in a mixed brilliant configuration that has been calibrated to harmonize color depth and light return. The gem presents intense color saturation and a clarity grade described as very slightly included when evaluated at eye level, with an excellent polish that ensures clean facet junctions and minimal surface diffusion. The proportions yield an approximate depth of seventy four percent relative to the average of its length and width, and a length to width ratio of approximately 1.14, values that contribute to the sapphire showing saturated hue without appearing visually too deep or too shallow. Origin information from Montana is significant for the mineralogical character of the stone, as corundum from this provenance often exhibits a bluish green matrix that responds well to a mixed brilliant faceting strategy. The mixed brilliant approach employed here prioritizes an optimized table size and crown faceting geometry that direct incident light into the pavilion for internal reflection, while maintaining enough crown facet dispersion to create dynamic scintillation under varied lighting conditions.

The mixed brilliant faceting on this cushion sapphire combines modified brilliant facets on the crown with carefully proportioned pavilion facets, a configuration that intentionally balances return and depth. On the crown, smaller kimberley style facets and split facets increase the number of light return angles, creating a lively array of scintillation points as the ring moves. The pavilion uses a mix of shallow and elongated facets to increase the number of internal reflections, effectively trapping light and returning it through the crown in controlled flashes. Girdle thickness has been maintained within a precise tolerance to avoid light leakage at the junction, and the culet has been finished to avoid unwanted dark centers while preserving the integrity of the pavilion facet intersections. The result is a sapphire that displays an even field of bluish green color when viewed face up, but that also flashes brilliant highlights and subtle partitions of light toward the viewer as angles change, a deliberate outcome of facet count and angle optimization executed by skilled cutters.

Flanking the central sapphire are white marquise shaped laboratory grown diamonds with a combined approximate weight of 0.16 carats and white pear shaped laboratory grown diamonds with a combined approximate weight of 0.40 carats, all graded clarity Very Slightly Included in the VS1 to VS2 range and color grade F. The marquise and pear shapes were selected and oriented to complement the cushion profile, providing elongated directional brilliance that contrasts and frames the core stone. Marquise facets create linear scintillation that lengthens the visual axis of the design, while pear facets concentrate light toward the finger for enhanced perceived center weight. Each diamond has been matched for optical symmetry and polish to ensure consistent light performance alongside the sapphire, and their superior color grade supports maximum contrast against the bluish green center without introducing warm body color. The diamonds sit in a precisely engineered mounting that aligns their pavilion axes with the center sapphire facets, a small but important technical detail that minimizes destructive light interference and amplifies collective brilliance across the composition.

The setting is entirely executed in 14 karat yellow gold, selected for its warm tone that subtly complements the bluish green of the Montana sapphire and enhances perceived saturation without compromising light behavior. The gallery is open engineered to allow maximum light to enter the pavilion from below, and the prong geometry secures each gemstone while exposing optimal facet surfaces to incoming light. Hand finishing and an excellent polish on the metalwork preserve crisp facet windows and minimize shadowing near the girdle, contributing to an uninterrupted optical pathway. From a gemological perspective, the refractive index of corundum at approximately 1.76 combined with the low dispersion of sapphire requires a cutting strategy that emphasizes contrast and facet proportion rather than fire alone, and this piece exemplifies that approach. The Natural Sapphire Company applies meticulous quality control, verifying facet symmetry, polish quality, and optical alignment to ensure that the cutting and setting collectively maximize brilliance, scintillation, and color saturation. For clients seeking technical specifications or side by side light performance comparisons, further gemological documentation and viewing options are available upon request.