0.96 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.96 carat round blue sapphire from Ceylon, supplied by The Natural Sapphire Company, presents a highly technical combination of dimensions and finish that will appeal to discerning buyers. The gemstone measures 5.97 by 5.97 by 3.74 millimeters, producing a depth percentage of approximately 62.7 percent, a proportion that balances face up presence with efficient light return. The stone is transparent, unheated and unenhanced, with a clarity grade described as very slightly included at eye level, which indicates only minor internal features that do not significantly disrupt light paths. The cutter employed a mixed brilliant cut, combining a brilliant style crown with a complementary pavilion design that optimizes both scintillation and color delivery. The polish is graded excellent, and this is evident in the crisp facet junctions and the mirror like finish on each facet plane, characteristics that minimize surface diffusion and maximize contrast between bright and dark facets.

The mixed brilliant faceting on this sapphire is executed to precise geometry, with a well proportioned crown angle that disperses light into controlled flashes and a pavilion that directs return light back through the table for maximum face up brilliance. The crown facets create strong star and bezel reflections that contribute to lively scintillation when the gem is in motion, while the pavilion facets, arranged to support pointed returns, intensify selective areas of deeper blue within the stone. Because the stone is of medium color intensity, the faceting strategy consciously preserves saturation while preventing the stone from appearing overly dark in practical jewelry settings. The very slightly included clarity grade is an advantage in this instance, because the small inclusions can act as additional facet like surfaces that enhance internal reflections without introducing cloudiness. The excellent polish ensures that optical boundaries remain sharp, producing crisp flash patterns rather than blurred glows, and the fine lapidary finish minimizes light leakage through the girdle and facet junctions.

Under varied lighting conditions this sapphire displays a nuanced range of behavior that a knowledgeable buyer can anticipate. In natural daylight, especially under indirect north facing window light, the stone reads as a pure mid tone blue with balanced saturation, the mixed brilliant facets creating a steady mix of scintillation and broad bright areas across the table. In direct sunlight the contrast increases, producing vivid pinpoints of white sparkle where the crown stars intercept strong beams, and pockets of deeper cornflower like blue emerging from the pavilion planes. Under warm incandescent lighting the stone shifts subtly toward a richer, slightly warmer blue, the deeper tones becoming more pronounced and the overall appearance taking on a velvety depth, while cool fluorescent or cool LED sources enhance the stone s cooler blue nuances producing a lighter, more electric face up color. In low ambient light or candlelight the apparent brilliance diminishes as expected, yet the mixed brilliant geometry preserves attractive internal flashes and a soft glow, so the sapphire maintains presence even when scintillation is reduced.

When set in jewelry the gem s 5.97 millimeter table and mixed brilliant architecture translate to a confident face up diameter and lively life on the hand, characteristics that are demonstrated in real world finger shots provided by The Natural Sapphire Company. The combination of medium color intensity and excellent polish makes this stone versatile for both white metal and yellow metal settings, with the color reading slightly deeper against warmer metal tones and slightly cooler against platinum or white gold. Because the sapphire is natural and unheated, it carries the full integrity of its Ceylon origin, and owners can expect long term color stability when cared for with routine cleaning using warm soapy water and a soft brush. For the technically minded buyer who values precise proportions, durable transparency, and predictable optical performance under a range of light sources, this 0.96 carat Ceylon round mixed brilliant sapphire represents a refined balance of craftsmanship and natural beauty offered by The Natural Sapphire Company.