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

This exquisitely eye catching 0.83 carat round bi color parti sapphire from Ceylon Sri Lanka is a refined choice for a striking gift for someone special, presented by The Natural Sapphire Company. The gem is transparent, light in overall color intensity, and exhibits the pleasing duality that defines parti sapphires, with a subtle interplay of cool blue tones and a faint greenish cast that shifts with viewing angle. The stone measures 5.75 millimeters by 5.76 millimeters by 3.31 millimeters, and those near equal diameters speak to a careful centering and symmetry in the cutting process. This natural, unenhanced sapphire carries an honest clarity grade of slightly included as evaluated at eye level, a characteristic that affirms its natural origin and that allows the stone to retain lively transmission and a refined, unaltered surface appearance.

From a lapidary standpoint the cutting and finish are demonstrably precise, the gem being faceted in a mixed brilliant style that marries a brilliant crown with a pavilion geometry optimized for weight retention and scintillation. The mixed brilliant approach places smaller triangular and kite shaped facets on the crown to maximize flash and scintillation, while the pavilion employs modified facets that direct light back through the crown for appealing return and dispersion. With a measured depth of 3.31 millimeters relative to the mean diameter, the pavilion and crown proportions produce a depth percentage of approximately 57 point 6 percent, a proportion that balances face up size with optical performance. The excellent polish noted on the gem indicates that facet junctions are clean and that the pavilion and crown facets display precise facet meet points, attributes that enhance both brilliance and the perceived color dynamics of the parti sapphire.

Optically this sapphire rewards close examination, exhibiting the pleochroic tendencies and localized color zoning typical of sapphires that crystallized under variable trace element distributions. The light color intensity allows the mixed brilliant faceting to reveal dynamic color shifts as light and viewing angle change, creating a subtle but unmistakable parti effect that reads as two complementary hues in a single stone. The slightly included clarity grade, assessed at eye level, means inclusions are present but limited, and they do not materially detract from the gem s transparency or its ability to scintillate when mounted. The absence of any enhancement further elevates the gem s desirability for discerning buyers who value untreated natural material, and it makes the sapphire a meaningful choice for an heirloom piece. As a corundum the sapphire retains exceptional durability, Mohs hardness nine, which makes it well suited to daily wear in engagement rings and other frequently worn jewelry, provided mounting choices protect the girdle and pavilion areas.

When considering this stone as a gift, the technical attributes and natural provenance combine to create a memorable and distinctive present that communicates both rarity and craftsmanship. The Natural Sapphire Company recommends settings that showcase the color interplay, such as a four or six prong solitaire that allows maximum light entry, a low bezel with a thin profile for modern durability, or a halo setting that enhances face up presence while protecting the gem. For bespoke commissions, our craftsmen can advise on bezel thickness, prong geometry, and pavilion clearance to minimize stress on the slightly included areas and to optimize the parti color display. Each stone is selected and examined in controlled lighting to evaluate color shift and face up tone, ensuring that the final piece resonates with the intended visual impact. The combination of mixed brilliant faceting, careful proportioning, excellent polish, natural Ceylon Sri Lanka origin, and no enhancement makes this 0.83 carat round parti sapphire an exceptional technical specimen and a striking, personal gift that will endure across generations.