Ok I sorely DO NOT believe this whatsoever!!!!
I have NEVER seen this on my server nor has anyone else in my guild seen this... maybe I should ask some other guilds

Please do me a favour and confirm this is true by taking a SCREENSHOT of this reward has an option in the shuffles

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Alright, so I checked with the vh from another guild and she said that when completing and hard lab the maximum gem rewards are 100 gems which I can believe .. she get scores of +700 in lab 3 hard on a regular basis and sometimes 800, 4 times I can recall .. she says there are definitely no 1000 gem rewards.