The worst feeling, right? I lost a small diamond ring that my husband had given me. I had been to the jewelry store in the mall (the only store I went in). I noticed it was missing when I hit home; went back to the shop the next day to see if it had come off in there. No luck. So I spent several days thinking it was just gone then one day my husband shouted out that he had found it in the bathroom rug!! He had gotten down on the floor to change the kitty litter and put his hand on it. Your diamond may not be where you think it is!! Good luck♥️