Best place for selling High-price items?

Hi. Long story short.
I've got a item worth min 50 000 $ but selling
it in the right place, right person I believe it could go over one million dollars.

Since this has the most potenial of everything I've sold so far. I don't know where to
put it. eBay? high-priced acution like Sotheby?

It is a religious item so if I find some christian "fanatic" maybe it could sell for higher.
Please help me out, all advice/tips appreciated.

Is it any stolen historical artifacts?

Its hard to say based on your vague description of what it is, however a high profile auction house might be a good way to go. I know that the auctioneers around here charge about 20-25% commission, and I've heard that some go even higher, so you'll have to factor that into your decision.

Here are a few potential alternative suggestions:

Online Auction like eBay - Though if you do this, I would recommend meeting the buyer in person. You'll want to make sure that the payment is legit on something so large

Find a buyer online - Perhaps using a site like Craigslist, or a discussion board that is frequented by the type of people who might be interested in an item like this.

Regular Auction - You don't have to go through a fancy auction house. A local auctioneer might be just as good.

Is it a legitimate antique/relic or is it something goofy like Jesus on a piece of toast? lol