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

This gem is a transparent 1.16 carat oval bi color parti sapphire, with dimensions of 7.40 x 5.56 x 3.28 mm, faceted in a mixed brilliant style and finished with an excellent polish. The stone displays a delicate interplay of blue and golden tones with a light color intensity, and it is heat treated to enhance stability and symmetry of the color zones. Clarity is graded as very slightly included, evaluated at eye level, which indicates only minor internal features that do not detract from the overall transparency or brilliance when set. As a parti sapphire originating from Ceylon Sri Lanka, this example is notably rare in two respects. First, parti sapphires with clearly defined dual tones are more commonly encountered at smaller sizes, so a clean and well proportioned 1.16 carat specimen sits in a smaller supply band than single color sapphires of similar weight. Second, the particular balance of pale gold and soft blue, combined with the stone geometry and mixed brilliant facet arrangement, produces a visually distinct appearance that is less common among the more uniformly colored Ceylon material typically offered on the market.

For an educated buyer, several technical factors enhance the value proposition of this sapphire. The mixed brilliant cut has been executed to maximize both internal light return and the separation of the bi color zones, so the facet design contributes directly to both perceived color and lively scintillation. The very slightly included clarity grade, reported at eye level, means inclusions are minimal and do not compromise durability or setting options, allowing jewelers to orient the stone for optimal color presentation. Heat treatment is a widely accepted and stable enhancement in sapphire trade practices, used to clarify silk and to bring out the characteristic Ceylon tonalities, and the disclosure of this treatment aligns with best practice and transparency. The documented origin of Ceylon Sri Lanka adds provenance value, as Ceylon sapphires are recognized for their unique color palette and historical importance in the gem market. At The Natural Sapphire Company we emphasize these objective attributes to support valuation, noting that rarity, measured by the combination of parti coloration, a clean clarity at this size, and expert cutting, is what makes this sapphire a compelling choice for collectors and bespoke jewelry commissions who seek a stone that is both scientifically verifiable and aesthetically singular.