According to the Forums Code of Conduct , under NO circumstances should a hack or exploit be reported on the public forums. Because of the sensitive nature of hacks/exploits, posting on forums only ensures that other people are going to attempt to use them. Any poster who breaks this rule will have his/her thread deleted immediately and may be reviewed for a forums suspension.
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You sure it doesn’t just put the gem in your inventory, instead of the stash? Are you sure that the total quantity of gems in your stash and inventory increases?