Related Clues:

• Amethyst, e.g.
• Paving unit
• Tourmaline, e.g.
• Garnet or topaz
• "Platoon" director Oliver
• Diamond or emerald
• Ruby or garnet
• Something prized
• Bit of hail
• Little beauty
• Common prop in close-up magic
• Skipper on the water?
• Ring insert
• Paving block
• Lapidary's concern