Related Clues:

• Emerald, e.g.
• Guinness entry
• Valuable rock
• Amber, for one
• Heroic act
• Ring feature
• ''Guinness World Records'' entry, e.g.
• Precious thing
• Tourmaline or amethyst, e.g.
• Amethyst, e.g.
• Tourmaline, e.g.
• Garnet or topaz
• Diamond or emerald
• Ruby or garnet
• Something prized