0.42 Ct. Ruby from Thailand

This 0.42 carat pear shape ruby measures 5.81 x 3.92 x 2.41 mm, and is cut in a mixed brilliant style designed to balance fire with face up color. The mixed brilliant approach here deploys a brilliant facet geometry on the crown, with kite and triangular facets converging toward a modest table, while the pavilion is arranged to channel return of red chroma through elongated pavilion facets. The pear outline has been executed with careful symmetry, preserving the sharpness of the point and the rounded shoulder to maintain even dispersion and scintillation. Clarity has been evaluated as very slightly included at eye level, meaning under standard viewing the stone reads clean, with only minute rutile or crystal interruptions that act as internal character rather than distraction. Polish is excellent, allowing the facet junctions to remain crisp and the surfaces to facilitate maximal internal reflection and mirror like returns.

Optically the stone benefits from corundum class refractive properties, which together with the mixed brilliant layout produce a lively balance of brilliance and strong color saturation. The color is described as vivid intensity, a top end of the red tone scale for rubies, where chroma dominates without tipping into over dark or brownish appearance. The vivid red is supported by even color distribution across the pear plane, and the faceting strategy concentrates the chroma toward the table for immediate visual impact. Very slightly included clarity supports clean windowing, permitting the internal color to breathe and allowing pinpoint flashes of white light from the pavilion facets to interplay with the dominant red. The modest table and optimized crown angle encourage scintillation that reads lively in motion, while the pavilion geometry prevents unwanted light leakage even in jewelry settings.

This ruby has been heat treated, a widely accepted and stable enhancement for corundum that has been applied to improve both color saturation and apparent clarity. Heat treatment in controlled conditions can reduce rutile silk, enhance the red response by affecting chromium valence sites, and stabilize the tone so the vivid color persists in daily wear. The origin is Thailand, a source known for robust, well colored rubies and experienced lapidary traditions, which often favor cutting that preserves weight while maximizing the visible depth of color. The lapidary work on this piece shows intentional proportioning to preserve weight at 0.42 carat while producing an elegant pear silhouette that will sit securely in prong, bezel, or halo settings. The excellent polish combined with controlled facet symmetry evidences experienced cutting, minimizing windowing and ensuring consistent face up color across viewing angles.

Beyond the technical, this ruby carries a romantic narrative written by its color and clarity, a narrative well aligned with the pear shape that reads as a teardrop of joy. The vivid red evokes the first light striking gilded temple roofs in Thailand, the color of devotion warmed by coming day, and the very slightly included clarity carries the notion of an honest love, transparent in its core, bearing subtle memories like fine threads that catch light. When set as a pendant the pointed tip of the pear suggests a promise directed toward the heart, the rounded shoulder cradling the glow of passion, and the internal inclusions become private fingerprints that make the stone unmistakably singular. At The Natural Ruby Company we present this gem with full disclosure of origin and enhancement, and with the technical confidence that its mixed brilliant faceting, precise dimensions, vivid color intensity, and excellent polish will perform beautifully in a bespoke setting. For a collector seeking a technical specimen with emotional narrative, or for a designer seeking a lively 0.42 carat focal point, this Thai ruby offers an expressive combination of gemological quality and romantic resonance.