Ruby has been valued for centuries due to its excellent hardness (9 on the Mohs scale), along with its precious red tone and vitreous luster. Ruby is a variety of corundum that gets its chrome red color. Corundum, found in any color other than red, is classified as sapphire. In its pure form, corundum is […]
Monthly Archives: November 2019
Gemstone Prices Gemstone prices explainedWhy does a reasonably nice 1 carat heated sapphire sell for $500 while a fine untreated 6 carat tourmaline goes for $250? Why is a clean untreated 10 carat amethyst only $60? Gemstone prices are puzzling, even to many people in the gem trade. The simple answer, one would think, is […]
Piedras preciosas de mejor calidad a menor costo La pregunta que siempre escuchamos de los posibles clientes es: “¿Cuáles son las piedras preciosas de mejor relación calidad-precio actualmente en el mercado?” Hemos hecho un análisis del tema y a continuación presentamos nuestras conclusiones al respecto. Zafiro RosaZafiro Rosa Los precios de las piedras preciosas aumentan […]