A beautiful statement ring is part of every wedding celebration to honor the couple's love and commitment. Whether you've got an heirloom from Mama's ring stand or you're looking to invest in your own future heirloom, find inspiration from 100 years of stunning, classic rings. There are hundreds of styles out there with every color and cut combination that you could imagine. And, just like any other piece of jewelry, the trendy styles of engagement rings have changed through the decades. We went all the way back to 1915 to take a look at what ring style brides were gushing over. Through the years, although the sentiment stayed the same, the trends of the day impacted the popular styles. For instance, in the mid-1980s, brides went crazy over Princess Diana’s iconic large oval sapphire set in a diamond halo. We saw this same trend reappear in 2011 when Prince William proposed to Kate Middleton with Princess Di's ring. Whatever your taste, take note of these beautiful, classic engagement rings that will never go out of style.