Royal Antwerp Gem – Natural Color-Change Sapphire – 5.24 ct – Sri Lanka – No Heat – GRS Swiss Lab Certified ⸻ DESCRIPTION An exceptional Natural Color-Change Sapphire weighing 5.24 ct, displaying a remarkable change of color under different lighting conditions. According to the GRS report, the gemstone changes from violetish-blue in daylight to purple-pink under incandescent light, creating two distinctly different appearances in a single natural sapphire. The gemstone features a cushion shape with a modified brilliant/step cut. It has been examined and certified by GRS GemResearch Swisslab, Switzerland, which determined its geographic origin as Sri Lanka (Ceylon). Importantly, the report states “No indication of thermal treatment”, confirming its unheated status. The combination of 5+ carat size, natural color-change phenomenon, Sri Lankan origin, no-heat status and GRS certification makes this a particularly interesting gemstone for a serious collection or an important bespoke jewelry piece. ⸻ SPECIFICATIONS Gemstone: Natural Color-Change Sapphire Weight: 5.24 ct Color: Violetish-Blue (Daylight) → Purple-Pink (Incandescent Light) Phenomenon: Natural Color Change Shape: Cushion Cut: Modified Brilliant/Step (3) Dimensions: 11.60 × 7.71 × 6.35 mm Origin: Sri Lanka (Ceylon) Treatment: No indication of thermal treatment Laboratory: GRS GemResearch Swisslab, Switzerland Report No.: GRS2026-097522 Report Date: 17 September 2026 ⸻ SHIPPING The gemstone will be shipped securely, fully insured and with international tracking. Professional handling and careful packing are provided to ensure safe delivery. ⸻ PACKAGING The gemstone will be carefully packed in a protective gemstone box/bag together with its original GRS GemResearch Swisslab report. ⸻ DEALER NOTE PARAIBA – Fine Gemstones We specialize in carefully selected natural colored gemstones, with a focus on quality, transparency and professional gemological certification. Our gemstones are individually selected and, where appropriate, submitted to internationally recognized gemological laboratories for independent examination. ⸻ NOTES The color-change effect depends strongly on the type and temperature of the light source. The gemstone should therefore be viewed under both daylight/daylight-equivalent and incandescent lighting to appreciate its different colors. Photographs are taken to represent both appearances as accurately as possible. Actual colors may vary slightly depending on lighting conditions, camera settings and screen calibration. Please refer to the GRS report for the independent gemological identification, color description, treatment information and origin determination.