Selena Gomez's marquise-cut diamond engagement ring might be a nod to her 2015 hit song "Good For You," where she sings about being a "marquise diamond" that could "even make Tiffany jealous." ...
Lady Gaga has been seen wearing an enormous oval-cut diamond engagement ring set on a diamond pavé ... halves of the same soul forming the obscure heart that is our love," he explained.