0.39 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This cushion shaped blue sapphire weighs 0.39 carat and measures 4.03 by 3.56 by 2.46 millimeters, presenting a fine balance of size and presence for delicate, refined jewelry. The stone is faceted using a mixed brilliant cut, a choice that combines the scintillation of a brilliant style for the crown with step facets in the pavilion to enhance color return. The cut proportions and an excellent polish create crisp facet junctions and lively light return, making the surface appear crisp and energetic under both natural and artificial light. Clarity is graded as slightly included at eye level, meaning that under careful inspection small natural inclusions are visible, but these do not significantly interrupt the gem s overall transparency or its ability to display intense blue color. The sapphire has intense color intensity, a desirable saturation that reads immediately as vivid blue in the face up view, while still exhibiting depth when viewed from different angles. This stone has been heat treated, a common and accepted enhancement in sapphire gemology, applied to stabilize and improve the blue hue and to reduce certain types of veil like inclusions, and this treatment was performed under controlled conditions to enhance the gem s natural beauty without altering its fundamental identity as a natural Ceylon sapphire.

The origin of this sapphire is Ceylon, found in Sri Lanka, a region with a long and respected history for producing some of the world s most elegant blue sapphires. Sapphires from Sri Lanka are valued for a particular combination of tone, saturation, and clarity, often showing a lively, cornflower to vivid blue that remains luminous even in smaller sizes. The chemical cause of the blue is trace amounts of iron and titanium within corundum, and in Ceylon material these elements often coexist in ratios that create an appealing, cool to slightly warm blue depending on the exact geological conditions where the stone formed. The 2.46 millimeter depth of this stone contributes to an optimized pavilion angle that returns color while preserving brightness, a deliberate proportion chosen by the cutter to balance face up color with scintillation. For practical wear, this sapphire is robust, scoring nine on the Mohs scale, and its cushion outline makes it versatile for classic solitaire mountings or a halo design to visually increase presence. For a customer seeking an educated purchase, the combination of documented origin, clear disclosure of heat treatment, and the slightly included clarity grade means you are buying a natural, traceable gem with transparent treatment history and excellent cutting and polish.

The journey of this sapphire from mine to market is a sequence of careful, human decisions that add to its value. The rough material was recovered from alluvial gravels in Sri Lanka, by miners trained to recognize promising corundum fragments. From the initial discovery, the rough was sorted by color and clarity potential, and a skilled cutter evaluated the piece for the best compromise between retaining weight and achieving optimal color and light performance. The cutter selected a mixed brilliant faceting scheme to maximize the intense blue while preserving the cushion outline inherent in the rough, and every facet was planned to align inclusions away from prominent viewing planes when possible. After preforming and faceting, the pavilion and crown received an excellent polish to improve table brightness and reduce windowing. A controlled heat treatment followed, performed to enhance the stone s blue saturation and to reduce the visual impact of certain internal features, a standard practice in the trade that increases desirability while maintaining the stone s natural origin. Subsequent to treatment, the sapphire was examined, photographed, and graded by experienced gemologists, who documented the weight, measurements, cut style, clarity observation, color intensity, polish quality, treatment, and origin. At The Natural Sapphire Company we ensure each stone is accompanied by clear information and provenance where available, and this gem has been handled with chain of custody practices that respect responsible sourcing and ethical supply.

For the discerning buyer, this 0.39 carat Ceylon sapphire represents a compact but meaningful example of natural sapphire quality, offering intense color, competent clarity with character, and professional cutting and polish. Its modest size belies the rarity of intense blue saturation at this scale from classic Sri Lankan sources, making it attractive for use in bespoke engagement rings, delicate pendants, or as paired stones in fine jewelry. If set in a classic four prong or bezel mount, or enhanced with a diamond halo, the stone will read larger and display its saturated blue to great effect. The Natural Sapphire Company stands behind the gemological accuracy of the information provided, and we are available to discuss ideal settings, comparative sizing, and certification options, so that your purchase is both an informed investment and a lasting personal treasure.