3.55 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This pear shape blue sapphire weighs 3.55 carats, a weight that immediately marks it as a gemstone of significance, and one that commands a premium relative to smaller sizes. Corundum has a specific gravity close to 4.00, and the recorded dimensions of 12.53 by 7.65 by 4.88 millimeters produce a face up presence and weight distribution consistent with that density. The depth percentage calculated from these dimensions is approximately 48.4 percent, indicating a well balanced pavilion and crown depth relationship for a mixed brilliant configuration. In practical terms the 3.55 carat weight translates into a notable spread across the finger, while also preserving enough depth to concentrate color saturation, rather than sacrificing tone for mere surface coverage. Weight in sapphires does not scale linearly with price, because large, clean, vividly colored stones are exponentially rarer in the rough, and the decision to retain 3.55 carats from a Ceylon rough piece reflects careful yield management to optimize both color intensity and carat retention.

The cutting and finishing details of this stone are engineered to maximize optical performance while honoring material economy. The gem is fashioned in a mixed brilliant cut, employing a brilliant facet architecture on the pavilion coupled with modified crown faceting, designed to balance fire and color return. The table facet, crown angle, and pavilion symmetry have been executed to support strong light return into the eye, which paired with an excellent polish, enhances apparent saturation and brilliance. The sapphire is transparent and evaluated as eye clean at eye level, so no inclusions are detectable to unaided visual inspection in typical viewing conditions, and the cutting orientation minimizes any residual zoning or silk that could disrupt light transmission. Color intensity is described as vivid, a descriptor that denotes both saturation and tone that are in the upper echelon for Ceylon material, and the stone has been heat treated, a stable enhancement that is industry standard for optimizing blue tone in Sri Lankan sapphires without compromising structural integrity. Origin is Ceylon Sri Lanka, a source known for delivering a spectrum of desirable blue hues from cornflower to deep vivid blue, and the combination of origin, vivid saturation, and eye clean clarity contributes to its collectible appeal.

From a valuation and setting perspective, the 3.55 carat weight materially elevates this sapphire above more common size classes, because buyers pay premiums for stones that carry presence while remaining eye clean and vividly colored. The pear outline provides an elegant elongation, and the proportions given ensure a balanced look when mounted with the pointed end aligned away from the finger, a traditional orientation that maximizes visual length and light play. For durability and presentation, a bezel or a custom prong assembly that secures the tip is recommended to protect the vulnerable point, while a well proportioned head and gallery will allow light to reenter the pavilion to preserve brilliance. Metal choices can influence perceived color, and neutral white metals preserve the vivid blue, while warmer alloys can subtly shift perception toward richer tones without altering the stone itself. At The Natural Sapphire Company we emphasize provenance and exacting grading, and this sapphire exemplifies the convergence of weight rarity, precise cutting, and fine material quality that experienced collectors and designers seek. If you would like technical diagrams, mounting suggestions, or assistance arranging an independent report to accompany this 3.55 carat Ceylon sapphire, we can provide tailored support to ensure the setting and documentation reflect the gem s intrinsic value.