8.21 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This offering from The Natural Sapphire Company is a C.Dunaigre certified Blue sapphire, weighing 8.21 carats, presented in an asscher octagon shape, measuring 11.12 by 10.90 by 7.11 millimeters. The stone is transparent and faceted with an asscher cut that emphasizes step facets and a geometric symmetry. Clarity has been evaluated at eye level as very very slightly included, and the surface finish has been graded as excellent polish. Color intensity is described as intense, and the sapphire has undergone a standard and stable heat treatment to enhance its color. The gem is of Sri Lankan origin, identified as Ceylon, and accompanied by certification that documents its key gemological attributes and origin. This combination of weight, cut, clarity grade, and documented provenance positions the sapphire as a significant specimen for a high end gemstone collection.

The asscher cut in this sapphire produces a distinctive optical character that differs from brilliant styles. Broad, concentric stepped facets create a hall of mirrors effect that highlights depth of color and a controlled interplay of light and shadow. The large table and well proportioned pavilion create strong face up color while preserving internal brightness and contrast. The intense blue color reads richly across the table without appearing overly dark or overly saturated, a balance that is particularly prized in sapphires from Ceylon. The transparency and very very slight inclusions allow even light distribution and visibility through the stone, with faceted planes that return light in measured flashes rather than a scatter of pinpoint scintillation, an effect that suits formal and contemporary settings alike.

From a gemological and practical perspective, this sapphire presents attributes desirable to collectors and jewelers. Sapphire from the corundum species ranks nine on the Mohs hardness scale, which affords excellent resistance to abrasion and suitability for regular wear in rings and other jewelry. The heat treatment reported for this stone is a well established enhancement that is stable under normal wear and standard cleaning, and it does not require special disclosure beyond certification. The clarity grade of very very slightly included at eye level indicates that inclusions are minimal and do not materially affect structural integrity, while the excellent polish contributes to durable facet edges and long lasting surface luster. The C.Dunaigre certification supplied with the sapphire offers independent verification of weight, dimensions, cut, clarity assessment, treatment, and origin, providing the provenance and documentation collectors expect when adding significant stones to a curated collection.

For collectors seeking a centerpiece sapphire with both visual distinction and documented pedigree, this 8.21 carat asscher octagon from Ceylon is an exceptional candidate. It will adapt to a range of mounting styles, from a restrained bezel that emphasizes the stone geometry to a classic prong setting that maximizes face up light. When handling and caring for the sapphire, routine cleaning with warm water, mild soap, and a soft brush is appropriate, and professional inspection is recommended when the stone is set to confirm secure mounting. The Natural Sapphire Company stands ready to provide the C.Dunaigre certification and detailed imagery to assist in appraisal and setting design. This specimen combines provenance, precise cutting, and collector grade presentation to serve as a refined addition to a high end gemstone collection.