How much money do you need to buy a diamond?

Excuse me, I'm curious about the financial aspect of purchasing a diamond. Could you kindly elaborate on how much money one typically needs to invest in order to acquire a diamond? I understand that the price can vary greatly depending on factors such as the diamond's carat weight, clarity, color, and cut, but I'm seeking a general estimate or a range that would give me a better understanding of the financial commitment involved. Additionally, if there are any specific strategies or tips you could recommend for making a more cost-effective purchase, I would greatly appreciate it.