Everyone’s melted things with a small magnifying glass, but we wanted to see how far we could push the idea. Could a massive lens concentrate enough sunlight to melt a million-dollar gold bar? We ...

At the biggest jewelry center in the United States, Alberto Hernandez fired up his machine on a recent day and waited until it glowed bright orange inside before shoveling in an assortment of rings, ...

With gold prices at record highs, jewelry collectors are in meltdown mode. For weeks, they’ve been scouring their homes and cracking open their safes to retrieve vintage necklaces, family heirlooms ...

With gold prices at record highs, jewelry collectors are in meltdown mode. For weeks, they’ve been scouring their homes and cracking open their safes to retrieve vintage necklaces, family heirlooms ...