The Dwarven craftsmen also coveted the jewel and murdered Thingol to obtain it, setting off the chain of events that led to the destruction of Doriath and the scattering of its people.
The Dwarven craftsmen also coveted the jewel and seeing that it was by their skill that the piece was made, they saw no reason to give it up willingly. This set off a chain of events leading to the destruction of Doriath and the scattering of its people.