User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-5043481-20150525113112/@comment-5569775-20150526210039

Didn't know about setting it at the gong, so thanks for the info. And to Clarify, they seem to have a chance to get any items from the monster(s) in question, including gems. The rarest thing one of mine has got was a Rathian Ruby & a Plate in the same quest, sadly I have no immediate use for them.