1.08 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

This oval, transparent bi color sapphire weighs 1.08 carat, and measures 6.46 by 5.26 by 3.42 millimeters. The stone is faceted in a mixed brilliant cut, which combines step and brilliant style facets to balance color distribution and optical performance. The gem presents a true bi color or parti characteristic, with a yellow center transitioning to blue at the pavilion and edges, classified as bi color by laboratory assessment. Color intensity is evaluated as medium, and the surface polish is graded excellent, providing a clean, reflective finish across the crown and pavilion facets. The gemstone is IGI certified, the origin is recorded as Ceylon Sri Lanka, and the material has undergone standard heat treatment to enhance color and clarity stability.

Proportions and cutting choices influence the presentation of the bi color effect, and in this example the pavilion depth yields an overall depth in a range that supports both face up size and internal light return. The mixed brilliant arrangement concentrates brilliance toward the table while allowing subtle flashes of color along the girdle, which accentuates the parti tone segregation without overwhelming either hue. The oval shape provides visual length and offers flexibility for a range of mounting styles, and the 1.08 carat weight positions the stone for both solitary center settings and as a refined accent in multi stone compositions. The excellent polish ensures that facet junctions and outlines remain crisp, contributing to consistent light performance and a pleasing table window.

Internal characteristics are evaluated at the very very slightly included level at eye viewing distance, indicating that any features within the stone are minor and do not detract from the overall transparency. Under magnification these natural inclusions can be observed as minute crystals, faint needle like growth structures, and thin planar features that are typical of natural corundum from Ceylon. These inclusions act as individual identifiers, a mineralogical fingerprint that confirms natural origin and formation history, and they are routinely referenced in laboratory reports and provenance assessments. Rather than reducing value indiscriminately, the presence of fine, well dispersed inclusions in this stone contributes to its individuality, imparting subtle character and evidence of natural growth that is often sought by collectors and gem specialists.

As supplied by The Natural Sapphire Company, this IGI certified bi color sapphire combines documented origin, measured provenance, and a professional cutting and finishing standard. The heat treatment applied is a conventional, stable enhancement used throughout the trade to bring out the best color and clarity attributes in Ceylon sapphires, and the certification confirms the treatment and other key parameters. For mounting and care, the sapphire is suitable for a variety of settings provided standard precautions are observed to avoid exposure to harsh chemicals and mechanical abuse, and routine cleaning with mild detergent and a soft brush will maintain its appearance. The combination of transparent bi color appearance, mixed brilliant faceting, measured proportions, and minor natural inclusions make this gemstone a technically interesting and attractively composed example for use in quality jewelry compositions.