1.78 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 1.78 carat round blue sapphire measures 7.14 x 7.11 x 4.49 mm, and is fashioned in a mixed brilliant cut that harmonizes a well faceted crown with a pavilion cut designed for optimal light return. The mixed brilliant facet arrangement produces strong scintillation and crisp facet junctions, while the cut proportions yield a depth of approximately 63 percent that balances face up size with internal light performance. Clarity grade very slightly included evaluated at eye level indicates minor internal characteristics that do not detract from the gem face up, preserving a clean visual presentation under normal viewing distances. The stone exhibits vivid color intensity with a saturated, pure blue hue characteristic of fine Sri Lankan material, and an excellent polish that enhances surface luster and crisp transparent facet reflections. Enhancement is heat treated, a stable and widely accepted process used to refine tone and clarity, and the origin is Ceylon, Sri Lanka, a provenance noted for producing sapphires with desirable brilliance and color saturation.

For the serious collector this sapphire represents a technically accomplished specimen that combines precision cutting, attractive proportions, and desirable optical properties, and it is an ideal addition to a high end gemstone collection. The mixed brilliant cut maintains both color and sparkle, making the stone versatile for settings that emphasize face up presence in rings or for loose display in a collection cabinet. The measured dimensions and weight are carefully retained through thoughtful cutting that maximizes yield from the rough while achieving symmetrical facets and an even girdle profile, factors that contribute to predictable setting behavior and secure mounting. Offered with full disclosure by The Natural Sapphire Company, this gem is presented with clarity on enhancement and origin, and it will appeal to buyers who prioritize craftsmanship, documented provenance, and investment quality. Whether set in platinum or 18 karat gold, or preserved as a loose treasure within a curated collection, this 1.78 carat Ceylon blue sapphire combines classical appeal with technical refinement.