1.05 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.05 carat oval blue sapphire from Ceylon offered by The Natural Sapphire Company measures 7.09 by 5.41 by 3.42 millimeters, and its mixed brilliant cut, excellent polish, and transparent, very very slightly included clarity as evaluated at eye level combine to produce a lively and lively reflective performance. Compared with darker, heavily saturated sapphires that trap light and can read flat in the face up view, this medium light blue allows ample light transmission so facets can return bright flashes and crisp scintillation. Against commonly seen step cuts or low quality cuts, the mixed brilliant pavilion and crown arrangement here creates stronger contrast and more precise facet junctions, translating into a dynamic play of light that makes each movement of the finger visible and engaging. Even when stacked beside popular blue alternatives like aquamarine or blue topaz, this Ceylon corundum shows a higher refractive responsiveness, offering more noticeable brilliance and contrast due to corundum’s inherently higher refractive index.

When compared to heat treated or diffusion enhanced sapphires, the untreated nature of this stone confers both visual and long term value advantages. Heat treated stones can achieve deeper color, but often at the expense of natural light behavior when inclusions are altered or clarity is artificially improved. This untreated Ceylon sapphire retains natural internal structure without halos of filler, so reflections remain clean and true, not clouded by surface-reaching treatments. The excellent polish ensures light reflects off gem surfaces without haze, increasing apparent brightness compared with poorly polished stones that lose return light to surface diffusion. The oval shape offers a generous face up area, which paired with the mixed brilliant cut maximizes the gem’s reflective real estate, giving more of the rich medium light blue color when set than smaller or more deeply cut stones of similar weight. For buyers seeking the best balance of sparkle, natural origin, and ethical transparency, this stone from The Natural Sapphire Company stands out, offering the vibrant reflectivity of a well cut corundum, the credibility of no enhancement, and the distinctive, airy Ceylon blue that is difficult to replicate in other blue gemstones, making it an excellent choice for an engagement ring or a signature piece of fine jewelry.