1.55 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.55 carat oval blue sapphire from Ceylon Sri Lanka embodies a precise combination of natural origin and masterful lapidary technique, presented by The Natural Sapphire Company. The stone measures 7.81 by 5.85 by 3.94 mm and is cut in a mixed brilliant style, a faceting schema that marries a faceted brilliant crown to a pavilion with step influenced pavilion facets, producing dynamic return of light and controlled light leakage. The table is proportioned to emphasize depth of color while maintaining lively scintillation from the brilliant facets, and the girdle is finished to a consistent thickness to aid secure setting. Evaluated at eye level the clarity is slightly included, with small feather and crystal inclusions that confirm natural origin without compromising transparency, and the polish is excellent, enabling crisp facet junctions and strong contrast between light and dark zones. The color grade reads vivid blue, with saturated tone that reads true blue under standard viewing conditions, and the stone is untreated with no enhancement, preserving the original chromophore balance of iron and titanium that generates the pure blue hue.

The geological narrative of this sapphire began millions of years ago deep within Ceylon Sri Lanka under conditions of high pressure and temperature during regional metamorphism, where aluminum rich protoliths recrystallized to form corundum crystals in silica poor environments. Over extended geologic time frames these primary corundum crystals were liberated from their host schists and gneisses by weathering and transported by rivers, concentrating in alluvial gravels where secondary gem grade stones were recovered. Microscopic zoning and the slightly included clarity are records of that crystalline history, with growth features and trapped mineral inclusions acting as fingerprints of the original growth environment. The mixed brilliant cutting philosophy applied to this stone was chosen to respect that history, orienting the pavilion to optimize light return while preserving weight and minimizing removal of characteristic inclusions, and the result is a durable, wearable gem that reads both technically precise and viscerally beautiful. For connoisseurs who value provenance, craftsmanship, and the unenhanced expression of natural color, this sapphire offers a direct connection to the deep time processes that created it, and The Natural Sapphire Company stands behind its origin and craftsmanship.