Welcome to FU RONG GEMS!We supply many kinds of Loose Gemstones at factory direct price, Free Quote: *protected email*
CORUNDUM COLOR CHART [caption id="attachment_6491" align="aligncenter" width="723"] Popular Colors of Corundum and Spinel Colors FU RONG GEMS[/caption] What is Corundum and What are its Basic Qualities? A: Corundum is an aluminum ...