Related Clues:

• It's placed in a setting
• Australian mine find
• Semiprecious gem
• Form of silicon dioxide
• It's softer than quartz
• A gem of a name?
• Birthstone of some Libras
• 16-Down's birthstone
• Birthstone before topaz
• Expensive sparkler
• Pricey stone
• Stone
• October's gemstone
• Treasured person
• Valuable beryl