Labs are now churning out large white diamonds that are indistinguishable from those found in nature. The diamond on the left is lab-grown, while the uncut version of the one on the right was created by millions of years of intense pressure.
Michael Rubenstein for NPR
A necklace of Saint Januarius, in gold, silver and precious stones, is displayed in Rome. The riches are from a treasure trove in Naples that is said to be worth more than the British crown jewels.
Gabriel Buoys/AFP/Getty Images