So where is the 3.5-carat sparkler – a diamond and platinum ring set with a central cushion-cut diamond, and encrusted with more than 240 smaller round diamonds – now that JP didn't get down on one knee?
According to a show source: "The ring is now with producers and is not in Juan Pablo's possession. If a proposal doesn't occur on the show, the show holds on to the ring. If Juan Pablo decides to propose in the near future, the ring would be his for the asking. But much further down the line? It's unclear whether or not he'd still have access to it."
Courtesy Neil Lane
"He looked at all the choices, asked questions and was very direct. It seemed like he was enjoying the process," said Lane. "He studied the rings, and we talked about the differences between a cushion cut and an emerald cut. He liked that the cushion cut was a romantic stone. He was talking to me like a guy who is about to propose would talk, and he seemed to take it very seriously."
From all visible signs, said Lane, "When I left him, he seemed prepared to propose. There were other Bachelors over the years, like Jake Pavelka, who seemed less certain or who might have been struggling. Juan Pablo was not that way."
Yet despite picking out the perfect ring, Juan Pablo still didn't pop the question.
"You go onto this show thinking if one of the girls here is the one and there's the click and there's the connection and there's the love, you propose and you're married," says Juan Pablo.
"But if it doesn't, it just doesn't happen. And I think that's why some relationships have not lasted. Fortunately, Sean Lowe and Catherine got married, Chris and Desiree are together. Those are the good examples."
Still, he added, "I don't feel there's a need to propose to somebody if you don't feel 100 percent."
Reporting by ELIZABETH LEONARD