0.39 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.39 carat oval blue sapphire measures 4.99 by 3.60 by 2.52 millimeters, and presents as a classic oval with balanced proportions and a mixed brilliant cut. The mixed brilliant design combines a brilliant style crown with a precisely faceted pavilion that optimizes internal reflection while maintaining a pleasing face up outline. With an average diameter of 4.295 millimeters the pavilion depth yields a calculated total depth of approximately 58.7 percent, a proportion that enhances tone and saturation without sacrificing table dominance or fire. The table facet sits proportionally to the crown facets, producing crisp facet intersections and efficient light return. The oval outline and facet architecture were executed to preserve weight while maximizing optical performance, making this piece particularly well suited to fine mounting where small scale and high visual impact are required.

Clarity is graded slightly included when evaluated at eye level, and transparency remains excellent with inclusions that do not materially disrupt brilliance or color. The stone shows intense color intensity, a trait that together with the measured depth amplifies the perceived saturation and gives the sapphire a vivid presence that belies its modest carat weight. Origin is Ceylon Sri Lanka, a source renowned for lively cornflower and violet blue tones, and this specimen displays the hallmark cool Ceylon character with a subtly cool to slightly violet overtone that reads strongly in both daylight and standard jewelry lighting. Importantly this sapphire has received no enhancement, so the color and clarity are entirely natural, a quality that becomes increasingly rare for stones of this size and saturation. Many comparable stones at this scale have been heat treated to intensify hue and clarity, therefore an untreated Ceylon sapphire with this degree of intensity is scarce and highly sought after by collectors and discerning designers.

Craftsmanship is evident in the excellent polish and tight facet junctions, the result of careful cutting to preserve the gem's natural color distribution while maximizing brilliance. The mixed brilliant cut contributes to a lively scintillation pattern across the crown, with well controlled light leakage through the pavilion that supports the intense face up color. For mounting considerations the 58.7 percent depth and the thin oval profile mean that bezel settings will protect the girdle and pavilion, while prong settings with minimal bezel metal will allow light to enter the pavilion and maintain the stone's visual liveliness. This sapphire pairs beautifully with both white metals for a crisp, modern appearance and warm yellow or rose gold for a more traditional contrast that accentuates the Ceylon blue. At The Natural Sapphire Company we emphasize provenance and natural state, and this untreated Ceylon sapphire represents a rare intersection of compact size, high color intensity, and fine cutting. For clients seeking a small but exceptional center stone for an intimate engagement ring, a halo or cluster setting, or a precision bespoke piece, this gem offers an uncommon combination of rarity and wearable elegance.