Grand Central Terminal information-booth clock valuation rumor

A longstanding urban legend claims the four-faced clock atop the information booth at Grand Central Terminal is made of opal and worth $10–20 million; this claim has been repeated in guidebooks and popular articles. The clock is an iconic meeting point in the terminal and its material and value have been the subject of public discussion and myth-making. Official treatments describe the clock as having an ornamental, high-quality finish, while the multimillion-dollar opal valuation remains a widely circulated rumor rather than an established fact.