[s6e23] The One With The Ring 📢

When Joey hands Chandler his credit card back, the card changes from a MasterCard to an American Express between shots.

Chandler and Phoebe track the buyer to a restaurant. To get the ring back, Phoebe pretends to be Chandler's dying fiancée whose "dying wish" is that specific ring. They successfully trade it for a less expensive ring Chandler bought as a backup. [S6E23] The One With The Ring

This was the third and final episode featuring Bruce Willis as Paul Stevens. When Joey hands Chandler his credit card back,

A boom microphone is visible at the top of the screen during the first jewelry store scene. Paul (Bruce Willis)

Rachel encourages her boyfriend, Paul (Bruce Willis), to open up emotionally. He eventually breaks down and won't stop crying about his childhood, leading Rachel to dump him.