Color-change sapphires require an exceptional combination of trace elements, primarily chromium and vanadium, within the corundum lattice. This 26-carat Ceylonese gemstone transitions from violetish-blue in daylight to purple-pink under incandescent lighting. Crystals exceeding 20 carats with distinct optical shifts are rare anomalies in mineralogy, historically documented in major museum collections rather than commercial trade.

This 26-carat color-change sapphire is an octagonal-cut gem from Sri Lanka, exhibiting a Violetish-Blue to Purple-Pink color transition, unheated, with a GRS certificate. The color-change phenomenon is evaluated by the percentage of shift under varying color temperatures (6500K daylight to 2700K incandescent), with this gem demonstrating a complete chromatic transformation. An unheated status at this 26-carat weight class marks it as an exceptional mineral specimen, as larger crystals rarely survive without major structural flaws or color zoning requiring thermal intervention. GRS spectral analysis provides definitive confirmation of its natural phenomenon. JUSTLEE is dedicated to sourcing macro-sized, untreated gemstones that fulfill the rigid criteria of investment-grade physical assets. Available for private viewing by appointment.

Product Type	Color Changing Violetish Blue Sapphire
Origin	Sri Lanka
Color	Color Change (Violetish-Blue to Purple-Pink)
Certificate	GRS
Processed (Yes/No)	No indication of thermal treatment
Cut	Octagonal
Carat Weight	26ct