The auction is start after the first bid and last for 48 hours after that, the auction will only end if no bids are placed within 15 min after the last bid. Once those 15 min are crossed the auction will end and no further bids shall be recorded.
Starting offer - 4m
Minimum raise - 100k (Any bid not adhering to this will be ignored)
You can also pay in items - Coin capsule (500k); IV reroll (700k)
It is a beautiful mount I hope you enjoy riding on this here are some pictures I took for your reference: