1.01 Ct. Yellowish Green Sapphire from Africa

This transparent yellowish green sapphire weighs 1.01 carats, and is executed in a classic cushion outline with precise dimensions of 5.74 x 5.03 x 3.75 millimeters, giving an overall depth of 69.6 percent relative to the mean diameter. The stone displays intense color intensity with a balanced distribution of yellow and green components, producing a rich hue that remains lively under both daylight and mixed incandescent lighting. Clarity is graded as very slightly included when evaluated at eye level, and the inclusions are minor, well oriented within the matrix to avoid disruption of the core light paths. The pavilion retains robust material for stone stability, and no enhancement has been applied, a factor that preserves natural chemistry and crystal lattice integrity. Origin is Africa, and the gem has been inspected and finished to an excellent polish, which maximizes facet delineation and surface brightness.

The cutter employed a mixed brilliant faceting schema to combine the flash and scintillation of brilliant style facets with the broad reflective planes associated with modified step design. The crown presents a carefully proportioned table and star facets, arranged to channel incident light into the pavilion where the mixed brilliant pavilion facets act as optical engines, redirecting light back through the crown in a controlled interplay of face up brightness and dynamic scintillation. Facet junctions are crisply defined, and the pavilion facet angles have been optimized to exploit total internal reflection across the yellow green absorption window, improving return relative to an unmodified cushion. Truncation at the corners softens the silhouette while providing additional reflective surfaces that contribute to the gem table flash during movement, and the spatial arrangement of pavilion facets promotes a balance between broad flash and fine speckle scintillation, generating a three dimensional light performance that reads intensely at near face up viewing angles.

From a craftsmanship and setting perspective, the combination of excellent polish and mixed brilliant geometry yields exceptional optical performance in both open and bezel settings, though an open prong or cathedral mounting will best preserve the crown light entry and face up brilliance. The measured depth and facet plan deliver consistent light return with minimal leakage, making this piece suitable for close bezel set solitaires where color concentration is desired, and for halo mounts where the scintillation will interact with surrounding melee to enhance perceived presence. As a natural, untreated sapphire, the stone carries the intrinsic value of unmodified crystal structure and geological provenance, attributes that are increasingly sought after by collectors and connoisseurs who evaluate both optical metrics and origin. The Natural Sapphire Company offers this gem with full disclosure of its technical parameters, and we can provide further photomicrographic detail, viewing recommendations, and customized mounting specifications to optimize pavilion to crown orientation for your chosen design.