Sterling silver earrings, Ag 925/1000. Studs with friction back. Rhodium plated. With genuine, natural gemstone - Mercury's mystic topaz. Charming silver earrings with a sophisticated cocktail of seductive glares. Gemstone characteristics: Type: Natural gemstone (enhanced) - Mercury's mystic topaz. Country of origin: Brazil. Carat weight: 2 x 0.58 ct = 1.16 ct. Round, brilliant cut, diameter 5mm. Color: White with rainbow reflections. Clarity: VVS. Luster: Excellent. Hardness: 8 Mohs. Specific gravity: 3.4 - 3.5. Refractive index: 1.61 - 1.64. Mystic topaz is created by special treatment of genuine, natural, colorless topaz - by plating a gemstone with microscopic layer of titanium. The plating process for titanium on topaz gemstones is protected by a strict patent protection, therefore there is a very limited amount of these beautiful gemstones available in the market. Price per pair.