The methods used in the mining of gem materials are many, from native mining to highly technical methods. Open Cast Mining: It includes the removal of overlying minerals or rocks to reach the gem bearing rocks. The gem - bearing rocks are then washed by jets of water under high...

Certified Natural Gemstone Whenever you are buying an expensive Natural Gemstone, make sure that you get a certificate from a reliable lab along with it! This ensures that you are getting what you paid for. At peakgems.com, Natural gemstones that are beyond US$300 will be certified by either the Gemological...