3.71 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 3.71 carat cushion shape blue sapphire from Ceylon Sri Lanka offered by The Natural Sapphire Company combines classic corundum strength with exceptional optical performance, making it stand out among gemstones in its category. Measuring 9.28 x 7.70 x 5.74 mm and fashioned in a mixed brilliant cut, this stone balances depth of color with lively scintillation, delivering both strong light return and an appealing play of flashes with movement. The clarity grade very very slightly included evaluated at eye level means the stone reads transparent to the eye, allowing clean internal reflection and vibrant color transmission. The vivid color intensity gives the pavilion and crown facets something to work with, producing saturated flashes rather than dim or washed out reflections. Excellent polish ensures facet junctions are crisp, and that mirror like facet surfaces create bright, sharp reflections instead of soft, dulled highlights. Heat treated in a stable and accepted way, this sapphire benefits from enhanced color uniformity while retaining the natural crystalline structure that yields superior refractive response.

Compared with other popular blue gems, this sapphire shows advantages in reflective quality and everyday value. Against tanzanite, which has a lower refractive index around 1.69 and a softer, more velvety appearance, this sapphire returns brighter, more energetic scintillation and holds color in varied lighting without becoming pastel. Compared with spinel, which can be vivid but typically has a lower dispersion and slightly softer luster, the higher refractive index of sapphire produces stronger contrast and crisper facet reflections, especially in a mixed brilliant cut. Against step cut sapphires or larger tableed stones that can appear windowy, this cushion mixed brilliant design maximizes both sparkle and depth, so reflections are multifaceted and dynamic rather than flat. When judged for value, the combination of a rare vivid Ceylon blue, excellent polish, and very very slightly included clarity makes this gem a superior choice for a statement ring or heirloom piece, offering both the scintillation buyers seek and the durable performance sapphires are known for, all with the trusted sourcing and presentation of The Natural Sapphire Company.