Related Clues:

• Amber, for one
• Ring feature
• Precious thing
• Tourmaline or amethyst, e.g.
• Amethyst, e.g.
• Tourmaline, e.g.
• Garnet or topaz
• Diamond or emerald
• Ruby or garnet
• Something prized
• Little beauty
• Ring insert
• Lapidary's concern
• Masterpiece
• Something sparkling