1.83 Ct. Bi Color Sapphire from Ceylon (Sri Lanka)

This listing presents a naturally transparent 1.83 carat round shaped bi color sapphire from Ceylon Sri Lanka, with precise dimensions of 7.54 x 7.59 x 4.22 mm, a mixed brilliant cut, and an excellent polish. The stone shows a medium intense color intensity that exhibits a pleasing interplay between cooler blue tones and lighter areas, producing the bi color effect that makes each viewing angle subtly different. Clarity has been evaluated as slightly included at eye level, which means inclusions are present but do not significantly detract from the overall visual impact when the gem is mounted and viewed in normal wear conditions. The stone has been heat treated to enhance color and clarity, a stable and widely accepted enhancement in the trade, and The Natural Sapphire Company stands behind the integrity of this sapphire with full disclosure of its origin and treatment history.

From a gemological perspective this sapphire combines attributes that appeal to educated buyers who value both aesthetic appeal and technical quality. The mixed brilliant cut integrates facets designed to optimize both scintillation and color distribution, with a faceting pattern that disperses light to enrich the medium intense color while preserving the lively sparkle expected of a round shape. The dimensions of 7.54 by 7.59 mm give the stone an ideal face up appearance for a 1.83 carat weight, and the 4.22 mm depth supports balanced light return rather than excessive darkening or windowing. Slight inclusions, as reported at eye level, can actually reinforce the natural provenance of the gem, offering microscopic fingerprints that confirm its crystalline origin in Ceylon Sri Lanka, rather than appearing as synthetic uniformity. The excellent polish contributes to crisp facet junctions and superior surface luster, ensuring the stone reads with clarity and movement under varied light sources.

The origin of this sapphire is an important part of its story and value proposition. Ceylon Sri Lanka has produced some of the most sought after sapphires in the world, prized for their subtly saturated blues and for a character that often balances vibrancy with softness. A Ceylon origin, combined with the bi color presentation, gives this gem a distinctive personality, one that reflects the varied geological conditions within Sri Lankan deposits where trace elements and growth conditions produce zones of differing chromophore concentration. Heat treatment has been applied to stabilize and enhance the existing color zones in a controlled and permanent manner, which is the most commonly accepted enhancement among gem professionals because it improves the gem without introducing foreign substances. For buyers who value provenance and responsible sourcing, The Natural Sapphire Company provides transparent documentation and photographic records that describe the stone in detail and support informed decision making.

Beyond its initial visual appeal this sapphire is built to retain and even deepen its capacity to captivate over many years. Corundum is second only to diamond on the Mohs scale of hardness, which means the stone is well suited to everyday wear in rings and other jewelry, resisting scratches and abrasion that reduce brilliance over time. The excellent polish and careful cutting mean that light performance is optimized now and will be preserved with routine care. Heat treatment, as applied to this stone, is stable and does not require ongoing maintenance to preserve color, unlike some surface treatments that may fade or require reapplication. With sensible care such as occasional cleaning with warm soapy water and a soft brush, professional inspections for setting security, and avoidance of harsh chemical exposure, the sapphire will maintain its transparency, color distribution, and faceted brilliance. For those who appreciate both aesthetic nuance and gemological integrity, this Ceylon bi color sapphire from The Natural Sapphire Company represents a durable and emotionally resonant choice that will continue to intrigue and delight as part of a curated jewelry collection.