Guest left strawberries on kitchen counter and stained granite—who is responsible?

Update: A cleaning solution with bleach left on the counter for a few hours finally removed the stain. This experience is a cautionary tale for both guests and hosts: granite countertops can be surprisingly stain-prone. Hosts may want to consider informing guests about potential staining from fruit and spills, especially if guests aren’t familiar with working with granite.

Background: I was the guest in this situation. I placed two pints of strawberries on the kitchen island for about 24 hours. They rested on paper towels to absorb moisture. After moving the fruit, I noticed a bright red stain on the granite underneath. I was able to scrub some of the stain away and have been trying various granite-safe cleaning methods found online. Given the size and intensity of the stain, I fear complete removal may require professional refinishing. I have not yet informed the host, but I intend to do so after exhausting my options.

Estimated cost: If refinishing is necessary, the cost could range from roughly $150 to $500, depending on the extent of the damage.

Question of responsibility: I caused the stain, but I did not know that fruit could stain granite and would not have left food out if I had known how easily it could leave a mark. There is no signage or handbook guidance indicating that fruit or other substances can stain granite, and I have never lived in a home with granite surfaces before.

I expect the community’s perspective may lean toward hosts, but I’m seeking opinions on whether I should be financially responsible for the damages in this scenario.