0.45 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.45 carat oval blue sapphire from The Natural Sapphire Company measures 5.03 x 3.87 x 2.89 mm, and presents an optimized oval ratio and depth that contribute directly to its superior light performance. The mixed brilliant cut marries a precisely faceted brilliant crown with a carefully configured pavilion geometry, producing a balance of broad face up color and lively scintillation. The average diameter of the stone yields an approximately 65 percent depth, a proportion that enhances internal light return and maintains strong brilliance without sacrificing the rich blue saturation. Facet junctions and symmetry have been executed to excellent polish standards, allowing clean transmission of light through the crown facets into the pavilion and back to the eye, generating pinpoint flashes of white light and a controlled pattern of larger, lively flashes that define premium mixed cut sapphires.

Color and clarity interplay in this Ceylon origin sapphire to create a visual depth that is often prized by connoisseurs, the color intensity is described as intense, delivering a vivid blue that shows even distribution across the table, with characteristic Ceylon vibrancy. The clarity grade is very slightly included, evaluated at eye level, meaning inclusions are minor and do not materially interrupt the path of light, allowing the internal facet architecture to produce clean scintillation and subtle spectral dispersion. This stone has been beryllium diffused, a disclosed enhancement that modifies the near surface lattice chemistry to intensify hue and saturation, and this treatment is stable and integral to the stone in its finished state. Combined, the mixed brilliant faceting, optimal depth proportions, high polish, and the intense Ceylon blue result in a sapphire whose sparkle is distinguished by both strong return of light and an even, velvety color field, making it especially effective in rings where light interaction is dynamic. At The Natural Sapphire Company we monitor cut specifications, clarity assessments, and treatment disclosures so that the technical performance of each sapphire is transparent, and this 0.45 carat oval is engineered to deliver exceptional brilliance, scintillation, and color depth.