Related Clues:

• Common - army officer
• Common - soldier
• Great prize
• Petraeus's rank
• Little treasure
• Diamond, pearl or sapphire
• Tiara component
• Thing in a ring?
• Ruby, e.g
• 50-Across, e.g
• Amethyst, for one
• Stony sparkler
• Ruby or topaz
• Emerald, e.g
• Onyx, e.g