18.10 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 18.10 carat Ceylon blue sapphire began its story deep in the ancient gem gravels of Ceylon, Sri Lanka, where centuries of alluvial mining have yielded some of the world s most admired blue sapphires. From the moment the rough was uncovered it showed exceptional promise, a transparent crystal with vivid color intensity that suggested a special combination of depth and scintillation. Skilled lapidaries shaped it into an elegant oval weighing 18.10 carats, with exact proportions of 17.08 by 12.58 by 10.37 millimeters, and a mixed brilliant cut chosen to balance fire and broad color saturation. The cutting and polishing were performed to the highest standards, resulting in an excellent polish and precise facets that return light with lively sparkle, while its clarity grade of very slightly included at eye level preserves its natural character and ensures the gem reads clean to the viewer. A careful heat treatment, a traditional and widely accepted enhancement for Ceylon sapphires, was applied to refine its hue and clarity, bringing forward the saturated cornflower to royal blue tones that collectors and connoisseurs seek.

The heritage of Ceylon sapphires is woven into the histories of kings and temples, and this stone carries that legacy into the modern world through The Natural Sapphire Company, where provenance and craftsmanship are as important as beauty. Historically, sapphires from Sri Lanka were set into coronets, talismans, and ceremonial robes, regarded as symbols of wisdom, protection, and faithful devotion, and this gem makes that continuity tangible when set into an heirloom ring, pendant, or brooch. Our cutters and designers imagine how light will play across the mixed brilliant facets, and how the oval silhouette will sit against the hand or close to the heart, echoing traditional forms while allowing contemporary settings to shine. If you seek a sapphire that blends storied origin, meticulous cutting, and a vivid presence, this 18.10 carat Ceylon blue sapphire from The Natural Sapphire Company is ready to be transformed into a piece that will be admired for generations, and we would be delighted to discuss bespoke settings or provide additional details to help you bring this gem into your life.