1.10 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent Ceylon sapphire presents as a precisely faceted radiant shape weighing 1.10 carats, with finished dimensions of 7.09 x 4.88 x 3.62 mm. The stone exhibits an intense color intensity, a clarity grade of slightly included as evaluated at eye level, and an excellent polish that maximizes its light return. The radiant cut marries trimmed corners with a mixed facet pattern that enhances both brilliance and color saturation, producing a lively blue that reads as distinctly Ceylon in character. This sapphire has undergone routine heat treatment, a standard and stable enhancement that refines tone and improves clarity while preserving the gemological features that identify its natural origin. At The Natural Sapphire Company we present these specifications to accurately describe both the measurable attributes and the optical performance you can expect in a finished mounting.

What makes this stone unmistakable is the internal architecture revealed by its natural inclusions, the very features that create a singular identity for each sapphire. Within this 1.10 carat gem there are delicate needlelike growth features and small, reflective crystal points that scatter and refract light in ways that are impossible to replicate in synthetic material. These fine, linear inclusions interact with the mixed facet pattern of the radiant cut to produce micro flashes of scintillation and areas of soft, velvety diffusion, giving the stone a layered depth that changes as it moves. In many Ceylon sapphires, fine silk or rutile growth patterns are common, and in this sapphire the inclusion network carries a faint, directional texture that aligns with the crystal growth planes, creating a subtle internal fingerprint. Inclusions such as tiny crystals, narrow growth tubes, and fine feathers are visible at eye level in a slightly included stone, yet they also serve as a map of the gem’s formation, providing reliable evidence of natural origin and individual character rather than detracting from its overall beauty.

The interaction between these inclusions and the precise polish of the pavilion and crown is a central aspect of the gem’s signature. The excellent polish ensures that light enters cleanly and is returned through the crown facets, where the internal features act as fine lenses and reflectors, producing contrast and life within the blue field. The radiant cut, with its combination of step and brilliant style facets, disperses the internal inclusion network across multiple planes, softening the visual presence of any single feature and converting microscopic irregularities into dynamic optical texture. Heat treatment has reduced some internal color zoning and stabilized the blue tone, while leaving enough of the inclusion pattern intact to authenticate the stone as natural and Sri Lankan in origin. For practical purposes in jewelry design, this balance of intense color, controlled inclusions, and superior polish makes the sapphire highly adaptable, particularly in settings that emphasize color and clarity together, such as solitaire or halo compositions that can capitalize on the gem’s lively surface reflections and internal depth.

When considering this sapphire for a commission or a personal collection, it is useful to regard its inclusions not as flaws to be concealed, but as distinguishing characteristics that contribute to its provenance and personality. The slight inclusions visible at eye level confirm that this is a natural Ceylon stone with a history of crystalline growth, and the patterns they form are unique to this specimen. The 7.09 x 4.88 x 3.62 mm proportions yield a comfortable spread on the finger while preserving the stone’s intense blue, and the 1.10 carat weight positions the gem as a substantial yet wearable choice. At The Natural Sapphire Company we document these details to ensure full transparency about condition, treatment, and origin, and to celebrate the subtle, intrinsic features that make each natural sapphire an individual work of geological art.