1.18 Ct. Blue Sapphire from Ceylon (Sri Lanka)

One transparent round blue sapphire, weighing 1.18 carats, presents precise dimensions of 6.10 by 6.05 by 4.15 millimeters, and is offered by The Natural Sapphire Company. The gemstone is faceted in a mixed brilliant cutting style, combining a brilliant-cut crown with a pavilion geometry tuned to enhance both light return and color saturation. The clarity is graded eye clean when evaluated at typical viewing distances, allowing unobstructed passage of light through the stone and contributing to lively internal reflection. Color intensity is described as intense, with a rich deep blue that retains brightness without appearing overly dark. The polish is excellent, producing crisp facet junctions and smooth facet planes that maximize reflected light. The stone has been heat treated, a common and stable enhancement for sapphires, and its documented origin is Ceylon, Sri Lanka, a source known for producing blue sapphires with vivid cornflower to deep royal blue tones. The proportions yield an overall depth of approximately 68 percent relative to diameter, a geometry that concentrates color while preserving good brilliance, and the round shape provides a versatile silhouette suitable for multiple mounting styles.

Under varied lighting conditions this Ceylon sapphire demonstrates distinct and attractive optical behaviors. In natural daylight, particularly midday daylight with a neutral to slightly cool spectrum, the gem will display its most balanced presentation, showing saturated blue tones with lively brilliance and well defined facet reflections. Under warm incandescent light the stone will take on a slightly deeper, richer character, with blue shifting subtly toward indigo and a greater sense of depth as the heat treated material absorbs longer wavelengths; overall sparkle will be warm and restrained rather than overtly scintillating. Cool white fluorescent and LED illuminants tend to accentuate the gem s higher energy blue components, producing a crisper, more electric blue appearance and increased contrast between bright flashes and darker facet areas. Under focused spot or gallery lighting the excellent polish and mixed brilliant faceting will yield pronounced scintillation, with rapid flashes of light as the stone or the viewer moves, and a vivid play between lighter and darker blue facet reflections. In low light and candlelight the sapphire will present a quieter, sumptuous presence, appearing darker and more velvety while still revealing occasional bright facet flashes as the eye catches reflective planes. The stone s crystal structure can exhibit subtle pleochroism, so slight shifts toward different blue or bluish violet tones may be observed when rotating the gem or changing the viewing angle, and the cutting style has been chosen to balance these color variations for an appealing overall visual effect.

Practical considerations for use and care are straightforward given the sapphire s characteristics. With a position of nine on the Mohs hardness scale, this Ceylon sapphire is highly resistant to scratching and well suited for everyday wearable jewelry such as solitaire rings, three stone settings, and pendants, while reasonable protective considerations such as well designed prongs or a bezel setting will help preserve sharp facet edges. The heat treatment documented for this stone is a stable enhancement that does not require special handling beyond normal gemstone care, and routine gentle cleaning using warm water, mild detergent, and a soft brush or occasional professional ultrasonic or steam cleaning by a qualified jeweler is appropriate. The intense blue color and eye clean clarity will present strongly in both minimalist and halo settings, and pairing with white metals will emphasize brightness while warmer metals will deepen the perceived blue. The Natural Sapphire Company provides this detailed description to assist in appraisal of the gem s attributes and suitability for particular designs, and additional information regarding mounting recommendations and viewing under specified lighting can be provided upon request.