Today’s tip of the day is for Enchanters.
Check out your AH. On my server (and also on www.wowecon.com) Voids have been going for the same price as one Large Prismatic Shard. Since Voids are shattered into two prismatics, you can double your money in a short time.
Look at small prismatic shards too; sometimes those will be going for ½ the Large Prismatic Shard prices.