Related Clues:

• Tiffany treasure
• Emerald or ruby
• Tiara inlay
• Astounding achievement
• Rock with a band?
• Absolute beauty
• Amethyst or tourmaline
• Jumping over 15 cars, e.g.
• Ring rock
• Glittering valuable
• Valuable stone
• Item for 26-Across
• It's multifaceted
• Diamond, for one
• Setting sight