Related Clues:

• Precious stone
• Bijou
• Exceptional person
• Jewelry stone
• "To Sir, With Love" singer
• Prized possession
• Setting item
• Crown sparkler
• Tourmaline or amethyst
• Setting filler
• Emerald, for one
• Remarkable thing
• Little masterwork
• Idaho, the -- State
• Sherlock's Blue Carbuncle, for one