Met Gala's best jewelry moments from the red carpet, from Lewis Hamilton's diamond brooches to Anne Hathaway's Bulgari ...

"In recent years, however, we've completely stepped out of that box, and natural diamond jewelry no longer follows ... and seen via the return of the brooch on men. "It seems that the trend ...

De Beers is closing down its lab-grown diamond business, cementing an earlier decision to stop selling the stones as jewelry ...