1. Emeralds are relatively brittle gemstones. Natural emeralds often have flaws and are prone to cracking. Therefore, strong extrusion and collision should be avoided. Soaking in oil or glue to conceal its flaws and cracks is a common method of treating emeralds. Silver jewelry processing plants rem Read More

We all know that silver is valuable, but it also has a side that we don't understand. According to the records of "Compendium of Materia Medica", silver has the effects of "safety the five internal organs, calm the mind, cure palpitations, strengthen bones, calm the mind, and improve eyesight". It i Read More