1.37 Ct. Blue Sapphire from Ceylon (Sri Lanka)

One transparent 1.37 carat oval shape blue sapphire, dimensions 6.45 millimeters by 5.26 millimeters by 4.63 millimeters, presents a vivid color intensity and exemplary clarity, graded as very slightly included when evaluated at eye level. The stone displays an even, saturated blue that reads richly face up, and its transparency allows internal light transmission without cloudiness. Cut to a mixed brilliant style, the oval outline is well proportioned with balanced length to width relationship and a carefully controlled depth, producing a pleasing table size and a confident presence in hand. The finish is of excellent polish, each facet meeting with clean junctions to give crisp reflections, and the stone has no enhancement, retaining its natural characteristics from Ceylon Sri Lanka.

The mixed brilliant faceting has been executed with geometric precision to maximize light play, combining a brilliant crown geometry with a pavilion structure that efficiently returns light to the viewer. The crown facets work as a finely tuned optical array, breaking incoming light into multiple internal reflections, while the pavilion angles guide those reflections back through the table to produce strong brilliance and lively scintillation. This geometric interplay of triangular and kite shaped crown facets, coupled with well proportioned pavilion facets, creates a dynamic balance of bright flashes and darker contrast areas, enhancing perceived depth and color saturation. The result is a sapphire that displays active movement across the surface as it is viewed under changing light, and it is especially effective when set in designs that allow unobstructed light exposure. Origin and treatment status are important to its character, and this stone is an untreated natural sapphire from Ceylon Sri Lanka, offering collectors and designers an authentic example of island provenance and vivid blue coloration. The Natural Sapphire Company provides detailed imagery and documentation to support assessment, and the gem is well suited to classic and contemporary settings where its geometric faceting and unenhanced color can be appreciated to maximum effect.