12.61 Ct. Blue Sapphire from Kashmir

This Lotus certified Blue 12.61 carat freeform shape blue sapphire presents as semi transparent with dimensions 24.50 x 11.30 x 6.70 mm, cut not applicable due to its freeform outline, clarity included evaluated at eye level, medium color intensity, excellent polish, heat treated, and of Kashmir origin. The freeform geometry preserves natural weight while allowing a bespoke faceting approach, typically a mixed treatment combining small pavilion facets to enhance return of light and broad table facets to emphasize the characteristic velvety blue that Kashmir material is prized for. Inclusions are consistent with an included clarity grade observed at eye level, often appearing as silk or internal crystals that scatter light softly, contributing to depth rather than distracting from the overall appearance. The excellent polish produces crisp facet junctions and a reflective surface, so even under low angle light the stone shows strong luster. Heat treatment is standard and stable for this material, improving saturation and tonal evenness while respecting the stone s natural silk structure. Given the 6.70 mm depth and semi transparency, an open back or partial gallery setting is recommended to maximize light transmission and to allow the medium color intensity to read with richness without becoming overly dark.

For custom settings the freeform shape invites asymmetric companion stones and precision hand cutting for an organic yet technical composition, produced and verified by The Natural Sapphire Company. Complementary gemstones should be selected to balance color contrast and optical properties, for example, high quality near colorless brilliant cut diamonds set as 1.5 mm to 3.0 mm melee in a graduated halo will provide high refractive contrast and a crisp white frame, enhancing perceived blue saturation. For side stones, calibrated trillion or kite shaped sapphires in lighter cornflower blue or in a subtle violet tone will echo the Kashmir blue while preserving tonal harmony, with sizes around 3.5 mm to 5.0 mm for visual balance next to the 24.50 mm length. For a bolder palette, medium to strong Burmese ruby accents provide warm complementary contrast, and step cut emeralds may be used sparingly to introduce a green counterpoint, mindful of relative transparency to avoid visual competition. Metal choice affects perception, platinum or 18 karat white gold will sharpen blue contrast, while 18 karat yellow gold will add warmth and bring forward any violet undertones. Custom prong engineering or a tailored bezel with open back gallery will secure the freeform outline while optimizing light return and showcasing the stone s Kashmir provenance.