I received a message from the buyer of the black diamond this morning. . . it turns out the crime was a crime of customer service, rather than fraud or theft or forgery.
The ground-level postman forgot to leave a “pick up your parcel” slip at the buyer’s house (two weeks ago).
The customer service person I spoke to on the phone simply lied about the signature (disgrunted post office worker + abused phone staff = pants on fire).
When the buyer took further action (going to the post office in person?threatening police action? threatening the post office in person? utilising the services of someone called “Billy the face”?), the TRUTH was REVEALED.
He now has his diamond. Says it’s very pretty.