Please review the pictures Heat treatment Red/Pink/Orange Transparent Certified collection of natural corundum sapphires accompanied by an official Gem Report Antwerp document dated 24 November 2025 under report number 18040538AN. This curated lot contains nineteen transparent mixed-cut stones presented in a sealed container. The gemstones display a vivid range of colors from light pink to deep pink, orangey red, and orange, with individual measurements stated on the certificate as 2.44 to 4.70 x 2.45 to 3.56 mm. Total combined carat weight listed as 3.46 ct. Cutting styles include oval, round, pear, and princess cuts, offering variety for collectors, jewellers, and investors seeking uniform yet naturally diverse sapphire parcels suitable for fine jewelry design, restoration projects, or long-term gem curation. The certificate notes indications of heating and the presence of beryllium diffusion. These enhancements are industry-accepted for achieving intense saturation and clarity, allowing this parcel to exhibit bright internal reflections, balanced brilliance, and distinct tone variation. Transparency is recorded as transparent, making these stones ideal for high-precision setting and gemstone arrangement. The color range across the nineteen stones provides opportunities for matched earring pairs, multistone rings, gradient pendants, and calibrated layout sets. Gem Report Antwerp’s authentication confirms the stones as natural corundum sapphires, ensuring traceable documentation and supporting buyer confidence. This certified parcel of pink, orange, and reddish sapphires reflects the aesthetic associated with contemporary jewelry trends, including warm-tone sapphire suites, multicolor sapphire bands, and collector assortments focused on rare pink-orange hues. The lot offers strong visual appeal for designers sourcing high-quality accent stones and for gemstone enthusiasts building reference collections of treated natural sapphires with documented grading results. Ideal for resellers, gem traders, artisan jewelers, and collectors seeking certified natural sapphire parcels with mixed shapes, high transparency, and a broad warm-tone palette supported by an Antwerp laboratory report.