Gold pendant, Au 375/1000 (9K yellow gold). With genuine, natural gemstone - blue diamond. Luxurious diamond pendant from a gentle yellow gold, which is hidding breathtaking blue diamond in the middle. Pendant with subtle simple silhouette gives uniqueness to its owner. Gemstone characteristics: Type: Genuine, natural gemstone - blue diamond. Country of origin: South Africa. Carat weight: 0.55 ct. Round, brilliant cut, faceted. Diameter ca. 4.91 mm. Color: Wonderful, vivid blue. Clarity: I1 (diamond contains impurities, hardly visible by the naked eye, which confirms the authenticity of a diamond and do not affects the rigidity and sparkle of a diamond). Luster: Excellent. Hardness: 10.0 Mohs. Specific gravity: 3.50 - 3.53. Refractive index: 2.417 - 2.419. Manual sorting grade. Commercial certificate. Avoid cleaning diamond jewelry with solution containing ammonia (cleaning is recommended with mild soap and soft cloth only, then dry on blotting background). Do not expose diamond jewelry to temperatures over 300 °C. Jewel is inspected and hallmarked by State Assay Office (official state authority). Pendant dimensions ca. 10x5 mm.