Lab-Grown Colored Sapphire gem Cutting Padparadscha for Jewelry/Luxury Accessories Attribute Value Chemical formula Al₂O₃ Size/Shape Customized Density 3.95–4.1 g/cm³ Specular Reflectance >85% Mohs ...عرض المزيد
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Lab-Grown Padparadscha Sapphire for Jewelry and Luxury Goods