Corundum Websites:

  • djgems.net

    djgems Home - Lapidary Items, Fine Gems, Rough & Jewelry From Around The World

    Lapidary Gems Facet Rough Opal Cab Rough Jewelry Rocks Gem Cutting

  • cigem.ca

    Gemology World – Canadian Institute of Gemmology

    Dedicated to research and advance in education in the field of gemmology. Gemlab Research & Technology. Gemological Books and Instruments. Professional Development.

  • beadworldinc.com

    Bead World - Where the Beads Live

    Bead World is "the" place for all of the newest gemstone beads and jewelry making supplies. Free Shipping on orders $35+ in USA! Enjoy 40% off one item weekly!