Here's the deal ... the rapper was seen a lot during Sunday's broadcast of the game, and a good amount of folks noticed the chain/necklace she was wearing in the suite with Taylor Swift and co., which (to a lot of people) looked like an upside-down cross.

Of course, that got some pearl-clutchers up in arms ... with accusations of "devil worship" and "demonic" symbols being shown on TV in front of millions. A hand gesture she made at one point -- quiet coyote -- certainly didn't help either with the unholy accusations.

Welp, as it turns out ... there's nothing un-godly about this pendant at all -- at least that's what we're being told anyway.

Sources with direct knowledge tell TMZ that the piece was designed by celeb jeweler Alex Moss, and it's just a sweet piece of ice with no devil ties behind it whatsoever. We're told the pendant is made from black gold, a new material that's been developed and which Alex is using in a forthcoming collection this cross also has baby pink sapphires all throughout.

Our sources say Ice is the first star of her caliber to have this sort of piece in her possession -- and she has Carti to thank for it ... we're told he actually gifted it to her not too long ago.

While the dude is certainly known for his gothic/vampire vibes these days -- our sources assure us ... there was nothing satanic behind the meaning/design of the piece, which we're told was a collab effort between Alex and PBC.

Hard to tell if people will buy that ... but that's the explanation that's been provided to us.

Whether it leans toward the dark side or not -- 'cause frankly, who the hell knows what's in people's hearts -- what we can gather from this is ... the chain is freakin' dope, and it's rare.

Anyhoo ... it's just the latest star to fight off accusations of dancin' with the prince of darkness.