The "Only Murders in the Building" star Selena Gomez has sported some killer beauty looks, but sometimes she can go overboard with the eye shadow and eyeliner.

On Monday, Selena Gomez offered her fans ... her gorgeous marquise diamond engagement ring. Gomez wore a black tank top for her montage of makeup application and sat on a red and white bedspread.

Then steal that Selena Gomez style with makeup and hair tutorials as well as shopping info on Selena's best celebrity street-style outfits and fashion must-haves.

On Monday, Selena Gomez offered her fans a Rare Beauty tutorial ... FIND OUT MORE ON ELLE COLLECTIVE Gomez wore a black tank top for her montage of makeup application and sat on a red and white ...