$8,000US-$80,000US. Your post lacks details to get any closer. What plastic are you using? Where is production? Do the parts have undercuts? Order quantity will only matter when you reach 100,000+ parts per year.
BTW: You can always try Protomold. They quote within 48 hours for aluminum molds, although there are restrictions on size and other features. I’ve found them to be competitive to cold calling suppliers for quotes.