Blue Star Sapphire - 7.47 ct - Gem research Swiss Lab (GRS) - No Heat

Blue Star Sapphire - 7.47 ct - Gem research Swiss Lab (GRS) - NO Heat, Ceylon Good Star Sri Lanka - No evidence of treatment- Lab report: GRS2026-097534 Royal Antwerp Gem - Natural Star Sapphire - 7.47 ct - Sri Lanka - No Heat - GRS Swiss Lab Certified DESCRIPTION An impressive Natural Star Sapphire weighing 7.47 ct, displaying a beautiful blue color and a distinct natural star effect (asterism). The gemstone has an oval cabochon shape and has been partially polished, preserving the characteristics responsible for its optical star phenomenon. The sapphire has been examined and certified by GRS GemResearch Swisslab, Switzerland. According to the GRS report, its geographic origin is Sri Lanka (Ceylon). Importantly, the report states "No indication of thermal treatment", making this an unheated natural Sri Lankan star sapphire. With its substantial 7.47 ct weight, natural asterism, Sri Lankan origin and no-heat status, this is an attractive stone for collectors as well as a distinctive bespoke jewelry piece. SPECIFICATIONS Gemstone: Natural Star Sapphire Weight: 7.47 ct Color: Blue Shape: Oval Cut: Cabochon / Partially Polished Dimensions: 11.79 × 8.40 × 7.06 mm Optical Phenomenon: Asterism (Star Effect) Origin: Sri Lanka (Ceylon) Treatment: No indication of thermal treatment Laboratory: GRS GemResearch Swisslab, Switzerland Report No.: GRS2026-097534 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 star effect is best observed under a single direct light source and may appear differently depending on the position and intensity of the light. Photographs and videos are intended to represent the gemstone 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, treatment information and origin determination.

Estimation:€3,300

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