Note, there are four different "Membership Benefits" quest entries on Wowhead. These are all the same quest, the only difference is the rewards given. These are related to your reputation level with the consortium. You receive a sack of gems that increases in value and number with each higher rep level.

Gem Stuffed Envelope appears to be for Friendly
https://tbc.wowhead.com/?item=25424#00zc

Unmarked Sack of Gems appears to be for Honored
https://tbc.wowhead.com/?item=25419

Bulging Sack of Gems appears to be for Revered
https://tbc.wowhead.com/?item=25422

Bag of Premium Gems appears to be for Exalted
https://tbc.wowhead.com/?item=25423





평판 아직 안되시는분은 좀 참았다가 ㄱㄱ