I can't find any Lambent Guardian Crystal in the shops (except my temporarily ludicrously priced one) or trades, nor does it look like anyone is advertising in the forums. How much should I actually be selling it for?

NEVERMIND guess my ludicrous price wasnt so ludicrously cuz someone bought it

Definitely not for 100m :P

My friend bought one last year for 500mil, but I’d wager it’s closer to the 750mil-1 billion sP price range now. added a few more tiers of scaling and it’s been a very sought after item lately.

I tried to price it much higher but my shop wouldn't let me for some reason. Guess you get a mega deal.

Yeah, 100mil is the cutoff for shops. I’m willing to sell it to you for the same price if you want it back. I just wanted to snatch it before someone else did.

I'd appreciate that. I take it any real high price sales go through the Trade center?

Yep! As far as I know the Trade Center has no limits to the amount of sP you can offer.

Here you go: Trade Lot :)