This is a pretty in-your-face set of symbols. At one point, Mrs. de Winter's wedding present from Beatrice, a set of art books, smashes Rebecca's wedding present, a super expensive cupid figurine. Mrs. de Winter doesn't know it yet, but this is definitely foreshadowing things to come. It's hinting to the readers that Rebecca and Maxim's marriage (as symbolized by the cupid) was irreparably smashed and broken. Doesn't get clearer than that.
But there's more to this symbol, we think. What is it that breaks the figurine? Not just art, but copies of artistic masterpieces. So does this mean that falsity (i.e. the fiction that Maxim and friends weave around Rebecca's death) will always triumph over truth? Eek. What do you make of that?