Related Clues:

• Blue river follows a double bend
• His paper turned to stone
• Laurence looks terrible in blue
• Perhaps one is turned to stone
• 'The stone is perhaps flawed,' I interposed
• Precious stone, when held up, has sparkle, reportedly
• Brilliant precious variety of corundum
• Blue colour
• Delicate blue
• One perhaps turned to stone
• Stone apparently found in county
• A last letter regularly queried shade
• A gem
• Father obtains program foremost for housekeeping -- it's a gem
• Wrapping paper is concealing hot gem