1.10 Ct. Orangish Yellow Sapphire from Ceylon (Sri Lanka)

This 1.10 carat radiant shape orangish yellow sapphire represents a precise confluence of weight, proportion, and origin, qualities that specialists at The Natural Sapphire Company evaluate when matching gemstones to discerning clients. The stone measures 6.53 by 4.58 by 3.81 millimeters, and presents an elongated radiant silhouette with trimmed corners, a hallmark of the radiant cut that balances the fire of a brilliant style with the crisp outline of an emerald influenced geometry. The color registers as an intense orangish yellow, with a saturation depth that reads as vibrant in both daylight and warm incandescent light. Clarity is graded as very slightly included at eye level, which indicates the presence of minor internal features that do not detract from overall transparency or brilliance under normal viewing. The piece has been heat treated, an industry standard enhancement applied to Ceylon sapphires to intensify and stabilize color, and its surface finish is categorized as excellent polish, confirming careful lapidary attention to facet smoothness and reflective efficiency.

From a faceting and optical performance perspective, the radiant cut on this sapphire has been executed to maximize color return while maintaining lively scintillation. The cutter has used a combination of star and kite facets on the crown and an array of brilliant style facets on the pavilion, creating a complex interplay between contrast and brightness. The length to width ratio of approximately 1.43 confers an elegant elongation that reads well in rings and pendants, while the depth proportion, roughly 68.6 percent when calculated against the average of the length and width, indicates a slightly deep profile that concentrates color in the body of the gem. These proportions mean the pavilion facets are relatively deep, which in turn encourages internal light travel and selective absorption of longer wavelengths, enhancing the stone full body of orange yellow. The excellent polish reduces scatter at facet junctions, producing clean facet reflections and crisp windowing transitions between flashes of honey and citrus tones. The trimmed corners typical to a radiant cut reduce corner stress and offer design flexibility, allowing for protective settings without compromising table transparency.

The internal characteristics of this sapphire are what create its unmistakable signature, and they merit close technical description because they are part of the gem identity. Under magnification the stone displays a fine network of silk like rutile needles that are dispersed in controlled orientation, together with a few very small isolated crystal inclusions. There are also minor feather type signatures and occasional negative crystal cavities, arranged in a manner typical of Sri Lankan corundum where growth zoning and late stage mineral inclusion occur. These features interact with light to produce localized scintillation centers, tiny points of concentrated reflection that animate the stone as it moves. The rutile silk, while reduced in visibility by heat treatment, acts to soften and diffuse light in certain angles, lending a velveteen glow to the orangish yellow and moderating potential harshness from overly large facet windows. The small crystals function as internal mirrors, throwing back pinpoint highlights that contribute to the lively brilliancy despite the stone very slightly included grade. The patterning and relative positions of these inclusions amount to an internal fingerprint, one that gemmologists can map and that The Natural Sapphire Company records to document provenance and history of the individual specimen.

In practical terms for mounting and long term wear, this sapphire combines robustness with design adaptability, attributes that buyers and jewelers value when specifying settings for daily wear. Corundum has a high hardness and this piece, with its polished facet junctions and trimmed corners, benefits from classic prong or secure bezel approaches, especially where corner protection is desired. The intense orangish yellow color is particularly responsive to warm metal tones, and technical pairing with 18 karat yellow gold will reinforce the golden aspect, whereas white metals will present the stone with a slightly more citrus emphasis. The heat treatment applied is stable and widely accepted, providing color saturation enhancement without compromising the structural integrity of the crystal. For clients who require documentation, The Natural Sapphire Company can provide detailed imagery and inclusion maps, plus an account of cutting geometry and polish grading, all of which support appraisal and certification workflows. For connoisseurs seeking a sapphire that exhibits both technical excellence in cut and a unique internal character only found in natural Ceylon stones, this radiant orangish yellow sapphire is an exemplary candidate.