Jew·el n.
 1. An ornament of dress usually made of a precious metal, and having enamel or precious stones as a part of its design.
 Plate of rare device, and jewels
 Of rich and exquisite form.   --Shak.
 2. A precious stone; a gem.
 3. An object regarded with special affection; a precious thing. “Our prince (jewel of children).”
 4. A bearing for a pivot a pivot in a watch, formed of a crystal or precious stone, as a ruby.
 Jewel block Naut., block at the extremity of a yard, through which the halyard of a studding sail is rove.