The National Museum of Natural History will permanently display the Dom Pedro Aquamarine, which is the largest single piece of cut-gem aquamarine in the world, beginning Dec. 6. It joins an ...

Jean-Noel Soni, who specializes in colored stones, said he tries to give each one a shape that “maintains the crystal’s integrity.” By Tanya Dukes When Lauren Schmeer, a strategy consultant in New ...

Not all gems are the same. If you’ve only ever seen factory-cut gems, the techniques, styles and qualities of renowned lapidary artists will blow you away. It’s one of the ways that top jewellery ...