The Moonstone Second Period, Narrative 6, Chapter 4 Summary

After going back to London after the birthday party, Godfrey went to Mr. Luker's to pledge the diamond.
Mr. Luker wouldn't give him a cent until Godfrey told him how he got the diamond.
Godfrey started to tell a lie, but Mr. Luker could tell, and demanded the truth.
So Godfrey told him that he'd seen his cousin, Franklin Blake, leave his own bedroom, enter Rachel's sitting room, and come out with the diamond.
Franklin then saw Godfrey, and gave him the diamond, asking him to put it back in the bank where it was safe.
Then Godfrey just took it and didn't say anything to anyone.