5.04 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent, cushion shaped natural blue sapphire weighing 5.04 carats, offered by The Natural Sapphire Company, and it presents precise dimensions of 9.04 by 8.07 by 6.75 millimeters. The gem is cut to a mixed brilliant configuration and shows a vivid color intensity with an excellent polish. The clarity has been evaluated at eye level as very very slightly included, and the stone has been heat treated in a controlled process that is common and stable for sapphire enhancement. Origin is Ceylon, Sri Lanka, a region noted for sapphires that combine saturated, lively blue tones with a sense of depth and clarity. The combination of weight, proportion, and origin gives this specimen a presence and balance that is suitable for classic and contemporary settings.

The geometric faceting of this cushion sapphire has been executed to maximize light play, and the mixed brilliant design harmonizes step and brilliant facet systems to yield both brilliance and color saturation. The crown presents a network of brilliant facets that break incident light into dynamic flashes, while the pavilion is composed of carefully angled facets that promote internal reflection and return light through the table and crown. The cushion outline allows for softened corners and a generous table, and the facet junctions are arranged with symmetry and proportion so that light is captured and redistributed across the stone rather than escaping through broad windows. The resulting visual effect is an even field of scintillation when the gem is moved, and a strong center glow when viewed face up.

Optical performance is characterized by a vivid blue that shifts subtly as the stone moves, an effect accentuated by the geometric faceting that weaves together contrast and brightness. Sapphires exhibit pleochroism, and the mixed brilliant faceting on this cushion shape is calibrated to present the strongest color plane face up, while the pavilion geometry retains depth and saturation when light enters at varying angles. Because sapphire dispersion is modest, fire in the traditional sense is restrained, and the perceived liveliness is driven by contrast, brilliance, and the way facets create alternating light and dark facets. The cutter has balanced pavilion depth and crown height to avoid excessive windowing, so color remains concentrated and light returns as lively flashes and uniform color saturation across the table.

Clarity and finish contribute directly to the gem behavior, and this piece displays a transparency that allows light to traverse the gemstone with minimal interruption. The clarity grade of very very slightly included reflects correspondingly minor internal features that do not interfere with overall transparency or the flow of light. At eye level the inclusions are not distracting, and they have been oriented and considered in the cutting process so that they do not create dark areas that would disrupt scintillation. The excellent polish enhances surface luster and ensures that facet junctions act as clean reflective planes. Taken together, clarity, polish, and facet geometry produce a sapphire that maintains strong optical performance under a range of lighting conditions and that will read as vivid and lively once set.

Provenance, treatment, and practical considerations are presented transparently, and the origin of this sapphire in Ceylon, Sri Lanka situates it within a long gemological tradition. Heat treatment is a standard and stable enhancement that improves color and clarity without compromising durability, and this stone has been processed to professional standards. The proportions and weight make it suitable for a variety of fine jewelry applications including rings, pendants, and bespoke pieces where the cushion outline and mixed brilliant faceting will be emphasized. Cleaning with warm soapy water and a soft brush is appropriate for routine care, and periodic professional inspection is recommended to ensure settings remain secure. Documentation and gemological reporting can be provided on request through The Natural Sapphire Company, reflecting our commitment to clear, technical description and responsible gemstone stewardship.