4.55 Ct. Blue Sapphire from Ceylon (Sri Lanka)

Presented by The Natural Sapphire Company, this transparent blue sapphire weighs 4.55 carats and is fashioned into an elegant oval shape, measuring 10.68 by 8.57 by 5.63 millimeters. The gem is finished with a mixed brilliant cut that balances pavilion faceting for depth with crown facets for scintillation, producing even light performance and a refined face up appearance. Color evaluation indicates a vivid intensity, a saturated medium to deep blue that remains lively across viewing angles. Clarity is graded eye clean at normal viewing distance, with no inclusions visible at eye level, which supports strong transparency and visual purity. The stone has received professional heat treatment to enhance color and clarity, and it exhibits an excellent polish, resulting in crisp facet junctions and a smooth, reflective surface.

The origin of this sapphire is Ceylon, Sri Lanka, a region renowned for producing sapphires with a characteristic lively blue. For a high end gemstone collection this specimen offers a combination of desirable attributes, including a substantial carat weight for an oval sapphire, precise dimensions suitable for bespoke mounting, and optical qualities that respond well to both solitaire and multi stone settings. The mixed brilliant cut and excellent polish contribute to consistent brilliance and a refined presentation under both natural and artificial light. This sapphire suits collectors who prioritize natural origin, gemological clarity, and a vivid color profile, and it integrates seamlessly with curated sets where balanced proportions and superior finish are required. The Natural Sapphire Company provides full documentation on treatment and origin to support confident acquisition and long term collection management.

With a Mohs hardness of nine and a robust crystal structure, sapphire is well suited to both display and wearable pieces, while the gem benefits from careful mounting to protect the girdle and pavilion. The proportions of this oval, including its table and depth, allow for versatile setting options, from low profile bezels that emphasize color to open prong settings that maximize light return. For collectors who document provenance and treatment, The Natural Sapphire Company can provide laboratory reports and high resolution imagery, and the company advises routine professional cleaning and periodic inspection of mountings to preserve the polish and stability of the stone over time.