Like most jewelcrafters, I'm in constant need of gems and precious metals. I know these are quite valuable so I encourage you to try selling it on the auction house first. If you happen to find a gem that you don't feel like selling, I would be happy to turn it into something useful for you. I'm mostly using Moss Agate, Lesser Moonstone, Silver and Jade. I can also use Tigerseye, Shadowgem, and Malachite.