Related Clues:

• Wear out
• Emerald, for one
• Little masterwork
• Idaho, the -- State
• Sherlock's Blue Carbuncle, for one
• Someone or something special
• Ritzy rock
• Sculptor's material, perhaps
• Ruby or emerald
• Shooter of a sort
• It goes in a setting
• Green mineral
• It may be cut or paste
• Birthstone, e.g.
• Ruby, e.g.