I managed to collect enough Skyshards to make a Sky Crystal while farming Motes of Harmony in the Vale of Eternal Blossoms on my alt. However, since I already farmed and acquired the mount on my main, I have no use for this second Sky Crystal; so I've decided to sell the mount.
I aim to sell the mount for 100k gold (10k gold per shard sounds reasonable); the price is open to negotiation.
To Learn / Utilize The Mount, Your Character Must Be:
However, you don't need to meet any of these criteria in order to simply loot the mount item for future use.
Any interested parties may contact Hibiki (my banking toon) through in-game mail to sort out the details. Hode players will need to have an Alliance character with the same prerequisites in order for this transaction to work.
For further information, consult this WoWHead link (read the top rated comment):