How much is 1 doubloon worth now?

Excuse me, I'm curious to know the current value of a doubloon. Could you please enlighten me on how much this historical coin or token is worth in today's market? Is there a fixed exchange rate, or does it vary depending on factors such as demand, rarity, and perhaps even the condition of the doubloon itself? I'm eager to understand the intricacies surrounding its modern-day valuation.