He owns several successful businesses but this company is the 'jewel in the crown'. [=this company is the most valuable/important/admired]
The guests were heavily 'jeweled'. [=the guests were wearing a lot of jewelry]
The building is regarded as one of the 'jewels' of modern architecture.
(..) It's my face. Yes and you're doing a "We both know what's really going on here" face. We do. No, I don't, which is why I find the face so annoying. If Moriarty wanted the jewels, he'd have them. If he wanted the prisoners freed, they'd be on the streets. The reason he's still in a prison (..)2012 TvShow: Sherlock Title: The Reichenbach Fall Season: 2 Episode 3
(..) Today, outside the Old Bailey... This is the trial of the century... The trial of James Moriarty... James Moriarty, earlier today accused of... ..attempting to steal the Crown Jewels. At the Old Bailey we have Reichenbach hero Sherlock Holmes... Would you mind slipping your hand into my pocket? (..)2012 TvShow: Sherlock Title: The Reichenbach Fall Season: 2 Episode 3