Possible defect in 85 f1.8

Hi all been awhile since I've been here but just recently got back into photography and picked up an 85mm f1.8 and yesterday after my new circular filter came in from Amazon I went to put it on and noticed this on/in the lens and was wondering since I just picked it up a week ago from bestbuy (no real camera stores around where I live) should I take it back to exchange it I haven't noticed anything in pictures yet but at almost 400$ for the lens and less than a week old i don't expect defects. Any help or suggestions would be greatly appreciated thank you.

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Is that a crack in the front element? Regardless of IQ being affected, it'll affect your resale price and I would exchange it.

I'd be taking it back already.

So I feel completely dumb after taking the lens back to bestbuy the camera guy comes over to check it out gets a micro fiber cloth and cleans the lens and the mark was gone

No reason to feel dumb. It was a LEARNING EXPERIENCE!! That is what I tell my crews when they screw up.
You didn't loose any money so all is good. I did a similar thing when my wife decided we should get into photography and the 60D kit lens had marks after I wiped it off with a micro-fiber cloth. Thought for sure for several weeks that I had scratched the lens coating and it really bothered me. Eventually I did a real cleaning and the mark came right off. Sheesh!!

hobbes2000 wrote in post #17621263
So I feel completely dumb after taking the lens back to bestbuy the camera guy comes over to check it out gets a micro fiber cloth and cleans the lens and the mark was gone

What was that? A Hair that looked like a Scratch?..............​.