A helpful platform which introduces all kinds of general knowledge about stones, rocks and some minerals. It also provides hot news and exhibition info on stones, rocks and minerals.
http://www.b2bchinastone.com/

j-beads one of the leading wholesaler and suppliers of Gemstone beads which includes precious & semi precious stone beads and Silver beads and silver Jewelry in India with world wide consumption.
http://www.j-beads.com