Can I sell in another currency?
For now, marketplace asking prices are in US dollars (USD). That keeps listings consistent and comparable while the marketplace is in its early days.
A note on your private records
Your personal financials on a piece — what you paid, replacement value, and so on — can use your preferred currency from your preferences. That's separate from the public asking price, which stays in USD.
If you're dealing internationally, just mention your terms in the listing description and sort out the details directly with the buyer, since payment happens off-platform anyway.