How many rubies are in a dollar?

Could you please clarify this inquiry for me? The question "How many rubies are in a dollar?" seems to be based on a misunderstanding of currency and gemstones. Rubies are precious gemstones, while dollars are a form of currency used in various economies. They are two distinct and unrelated entities. However, if this is a hypothetical or metaphorical question, let's explore it. Assuming we're using a fictional scenario where rubies somehow have a fixed monetary value, the answer would depend on the agreed-upon exchange rate between rubies and dollars. But in reality, the value of a ruby is determined by factors such as quality, size, cut, and demand, and would fluctuate independently of the dollar. So, in summary, there is no fixed answer to "How many rubies are in a dollar?" as they are separate concepts. If you're referring to a specific scenario or context, please elaborate so I can provide a more accurate response.