0.91 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

From the moment this sapphire was born beneath the tropical soils of Ceylon, Sri Lanka, it carried the slow drama of earth, heat, and time, a story that we at The Natural Sapphire Company are honored to share. Deep in the island deposits, traces of iron and titanium lent themselves to a complex palette, and a crystal formed that would later reveal a unique bi color personality. This transparent round sapphire weighs 0.91 carat, and measures 5.71 by 5.74 by 3.55 millimeters, dimensions that speak to a gem that is both intimate and vivid. In its rough state it hinted at two harmonizing tones, and when we traced its path from mine to market, we kept sight of the way those tones might move and mingle on a daily basis, under different lights, and when set close to skin.

The shaping of this sapphire was entrusted to cutters who understand how to honor the gem rather than overpower it. Faceted with a mixed brilliant cut, the pavilion and crown were balanced to give life to the parti coloration, to allow flashes of blue to sit beside softer, paler notes in a way that feels deliberate and natural. The cutter preserved weight and optimized face up size, while achieving an excellent polish that sends light back with crisp, lively reflections. At eye level the clarity registers as very slightly included, which simply means the stone retains strong transparency and sparkle, with inclusions that do not detract from its beauty to the naked eye. The gem exhibits medium color intensity, an appealing middle ground that reads as elegant and wearable, and it has been heat treated to stabilize and enhance its color, a traditional and accepted enhancement that brings out the sapphire character without masking its origin or personality.

Because of its size and proportions this 0.91 carat round bi color sapphire is an exceptionally versatile choice, equally at home in a relaxed daily setting and in the glow of an evening occasion. Imagine it set in a delicate bezel on a simple band for a minimalist, everyday look, where the parti colors will catch sunlight during a morning commute and candlelight during dinner, or picture it as the center of a classic solitaire with subtle side diamonds that let the dual tones speak for themselves at a formal event. Its mixed brilliant cut supplies a sparkling, lively presence that reads larger than its modest carat weight, while its round shape offers timeless symmetry that complements both contemporary and traditional mounting styles. Because sapphire is corundum, the second hardest gemstone after diamond, it lends itself well to pieces designed for regular wear, and this particular stone, with its excellent polish and stable, heat treated color, will remain a dependable companion in rings, pendants, and even bespoke earrings.

Beyond measurements and technical grades, this sapphire carries the softer value of provenance and human care, a thread that connects the miner who first recognized its potential, the cutter who gently coaxed its brilliance, and the artisan who will set it in metal to complete its transformation into jewelry. Ceylon sapphires have long held a place in jewelry lore for their luminous clarity and lively hues, prized by collectors and designers for the way they convey both refinement and natural energy. At The Natural Sapphire Company we document and communicate these details because we believe provenance matters, and because understanding a gem deepens the bond it forms with its wearer. If you are considering this 0.91 carat bi color round sapphire for a custom commission or for a ready to wear design, our gemologists and jewelers will guide you through setting choices, metal pairings, and design tweaks that will accentuate its parti nature and suit your lifestyle, whether you seek a striking everyday piece, or a quietly brilliant center for a formal statement.