1.59 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent oval blue sapphire weighs 1.59 carat, and measures 7.74 by 5.96 by 3.97 mm, presenting a length to width ratio of approximately 1.30 and a depth that returns approximately 57.9 percent of the average diameter, proportions that favor a lively face up presentation and strong color saturation. The stone is fashioned in a mixed brilliant cut, with a faceted crown designed to optimize scintillation and a stepped pavilion architecture to concentrate tone and depth, producing a balance of flash and velvety blue return. Clarity is described as very very slightly included evaluated at eye level, which renders the gem effectively eye clean for practical wear while preserving natural internal features that confirm its authenticity. The hue is a vivid blue with intense saturation, and the polish is graded excellent, indicating crisp facet junctions, consistent girdle finish, and a table plane that supports strong light return. The overall cutting and finishing evidence careful rate control of pavilion angles and crown height, to maximize both brilliance and color when viewed table up under directional lighting.

This sapphire began its journey in the gem rich alluvial deposits of Ceylon Sri Lanka, recovered by small scale and artisanal operations where careful sorting separates gem quality rough from matrix material. The rough was selected for its transparency and color zoning potential, and then prepared and heat treated to stabilize and enhance tone and saturation, a standard and disclosed enhancement that refines the vivid blue without altering the gemological identity. Master lapidaries worked the material to a precise mixed brilliant design, adjusting facet proportions to the natural crystal habit and to the internal features so as to preserve weight while achieving excellent finish and optical performance. The Natural Sapphire Company then performed a final gemological review and photographic documentation, assessing cut symmetry, polish quality, clarity at eye level, and color grading, before offering the gem to the market. For the connoisseur who values technical provenance and artisanal craft, this 1.59 carat Ceylon sapphire presents a combination of measured proportions, disciplined cutting, proven enhancement, and vivid natural color, ready to be set into a design that highlights both its optical dynamism and its geological heritage.