Gold earrings, Au 375/1000 (9K yellow gold), blue topaz, diamonds. Topaz earrings decorated with delicate accent diamonds. Studs with friction back. With genuine, natural gemstone - blue topaz. Gemstone characteristics: Type: Natural gemstone - blue topaz. Country of origin: Brazil. Carat weight: 0.80 ct. Trillion cut, faceted, diameter 5 mm. Color: Blue. 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. 2 pcs diamonds with brilliant cut, total carat weight ca. 0.012 ct. Manual sorting grade. Commercial certificate. Jewel is inspected and hallmarked by State Assay Office (official state authority). Earrings dimensions ca. 7x5.5 mm.