At 18:10 Hrs. MOD went to room 313 in case of diamond ring of customer was missing before she living hotel, she told MOD and confirmed she put the ring inside coffee set. After that we ask the customer to let our team searching around the room and also they bags.The person searching is HKL/HKE and one HKQ. After that in a few minutes Khun Kai found the ring in glasses box with the ring as the customer told us it's missing. Then the customer has apologise with our team for this case.