Comment on Black Jade and Sapphire Rings by jessa1155

Diamond are harder than anything, but not tougher. An example would be gummy worms to a candy cane. The candy cane is hard but you drop it on a hard floor and it will break into many pieces. A gummy worm can bend, be dropped on the floor, stepped on and still remain together.
You can use diamond or silicon carbide to cut jade