Three Stone Blue Sapphire Ring 4.45 Ct., 18K White Gold

This ring centers on a transparent, C.Dunaigre certified Blue sapphire weighing 4.45 carats, cut into a cushion shape with mixed brilliant faceting, and measuring 10.55 by 7.96 by 5.42 millimeters. The stone is of Ceylon origin, exhibiting vivid color saturation and an eye clean clarity grade when evaluated at eye level, attributes that together allow light to move freely through the pavilion and crown without the interruption of visible inclusions. The cutting and finishing are described as excellent polish, which produces crisp facet junctions and mirror like facet surfaces. Complementing the sapphire are two natural white half moon diamonds, together weighing approximately 0.60 carats, with clarities in the Very Slightly Included range of VS1 and VS2 and a color grade of F. The entire setting is executed in platinum 950, a dense and color neutral metal that secures the stones while presenting a bright, reflective backdrop that enhances perceived color and brilliance. The Natural Sapphire Company supervised the selection and setting to ensure the balance of proportion and finish is maintained across the components of the ring.

The mixed brilliant cut applied to this cushion sapphire is the principal element that maximizes light reflection and perceived brilliance. A mixed brilliant combines the angular geometry of step or modified facets with the radiating pavilion facets of a brilliant style, creating a dynamic interplay between contrast and return. The pavilion depth of this stone, at approximately 5.42 millimeters relative to a length and width average that yields a depth of approximately 58.6 percent, falls within a range that favors strong internal reflection without excessive light leakage. This proportional balance means that incoming light is guided by the pavilion facets into repeated internal reflections and then returned through the crown in concentrated flashes, producing both scintillation and a stable overall face up brightness. The modified cushion outline broadens the apparent table area while the brilliant facet pattern fragments larger light returns into many smaller, lively flashes, which enhances scintillation on movement and maintains a saturated, vivacious blue when viewed face up.

Facet design on the crown and the precision of facet junctions are critical to how color and brightness are expressed, and the excellent polish on this sapphire ensures that each plane acts as an efficient mirror. Polished facet surfaces minimize diffusion of light and preserve contrast between light and dark areas, which sharpens the patterning of brilliance across the table and along the shoulders. The mixed brilliant arrangement also reduces the tendency toward windowing, a phenomenon where light passes through the stone without reflecting back to the observer, an effect that can diminish perceived depth of color. By concentrating reflections and producing numerous micro returns of light, the cut intensifies the sapphire s vivid hue while preserving a lively white light return that contributes to perceived fire and sparkle. Because the sapphire is eye clean, these optical effects are uninterrupted by visible inclusions, allowing the cut to perform to its intended optical potential.

The setting and supporting diamonds are arranged to complement the cut and optimize light performance in wearable conditions. The half moon diamonds sit flush against the sapphire, their crescent facets expanding the visual width of the center stone and adding controlled white brilliance to the shoulders, which improves overall contrast and frames the blue center in a way that accentuates saturation. The prong and gallery structure, crafted in platinum 950, elevates the sapphire to allow light to enter from multiple angles while maintaining a secure profile for everyday wear. Platinum s natural whiteness reinforces white light returns from the diamonds and reduces color contamination against the sapphire, preserving its pure Ceylon blue. The workmanship evident in the setting supports the cut s optical design, keeping facet alignment and light paths undisturbed. The Natural Sapphire Company stands behind the proportion and finish choices made in this ring, and the combination of mixed brilliant cutting, excellent polish, eye clean clarity, and complementary diamond accents produces a gem that presents a vivid, lively blue with optimized light reflection and lasting visual appeal.