In The Simpsons episode "Revenge is a Dish Best Served Three Times" story "Bartman Begins" Bart has a story parodying Batman Begins. Homer & Marge go down an alley on the way home from the Opera House. Marge comments that it's a bad part of town, so she'll turn her ring so that the large diamond is hidden, but that only reveals an even larger diamond on the opposite side of her ring.
There is no indication that it would be an engagement ring. Just a visibly large jewellery. However, if anyone remembers this and there was a mention of its being an engagement ring, feel free to put it back, but provide context.
I removed this example from the list:
There is no indication that it would be an engagement ring. Just a visibly large jewellery. However, if anyone remembers this and there was a mention of its being an engagement ring, feel free to put it back, but provide context.