2.10 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

This listing from The Natural Sapphire Company features a transparent 2.10 carat cushion shape greenish blue sapphire, with dimensions 7.07 x 6.08 x 4.66 mm, a mixed brilliant cut, a clarity grade of very slightly included when evaluated at eye level, intense color intensity, and an excellent polish. The gem is heat treated, a standard and stable enhancement that improves color saturation and overall visual balance, and it originates from Ceylon, Sri Lanka, a source renowned for producing sapphires with lively tone and attractive hue. The cushion outline offers a pleasing balance between a classic silhouette and modern proportions, while the mixed brilliant cut, combining pavilion faceting optimized for light return with a generous table, enhances scintillation and provides a lively optical presentation in both diffuse and direct lighting. The very slightly included clarity at face up inspection means internal features are minimal and do not interrupt the gem’s transparency or visual performance, and the excellent polish ensures clean facet junctions and maximum light transmission.

Compared with more commonly encountered greenish blue gems such as aquamarine and blue topaz, this Ceylon sapphire stands out for its deeper saturation, higher refractive index, and superior toughness. Aquamarine and blue topaz typically display a lighter, more pastel presence and have lower refractive indices, which translates to less pronounced internal sparkle and a more crystalline, watery appearance. This sapphire’s refractive properties and intense color produce a richer internal glow and more dynamic interplay of light, while the mixed brilliant cutting strategy increases scintillation that rivals that of standard brilliant cut gems. Compared with diamond, which exhibits stronger white light return due to its higher refractive index, this sapphire distinguishes itself by offering color driven brilliance and depth rather than pure white brilliance, making it particularly compelling when set to showcase hue and saturation. For practical use, corundum’s hardness provides substantial resistance to wear, making this gem well suited to rings and other pieces intended for regular use, while its polished cutting and minimal inclusions preserve a clean, enduring visual appeal.