Gold ring, Au 375/1000 (9K yellow gold), smoky topaz, diamonds. Luxury ring in modern romantic style, with breathtaking smoky topaz gemstone. Smoky topaz symbolizes a person with higher goals, with a thirst for knowledge, who knows his qualities, and can use his advantages for his own and common benefits. Gemstone characteristics: Type: Natural gemstone - smoky topaz. Country of origin: Pakistan. Carat weight: 3.80 ct. Oval cut, faceted, dimensions 9x11 mm. Color: Dark brown - smoky. Clarity: VVS. Luster: Excellent. Hardness: 8.0 Mohs. Specific gravity: 3.49 - 3.57. Refractive index: 1.606 - 1.644. Diamonds are SI clarity, H-I color. 4 pcs of diamonds with brilliant cut, total carat weight ca. 0.028 ct. Commercial certificate. Jewel is inspected and hallmarked by State Assay Office (official state authority). Topaz jewelry cleaning: The best way to clean topaz jewelry is by using mild detergent and warm water. Avoid cleaning with ultrasound or steam cleaners. Do not expose topazes to excessive heat or acids. Pattern width ca. 10 mm, band width ca. 1.5 mm.