"There's nothing like a royal wedding to spark some serious trends — and nothing like a royal engagement to influence ring styles! The 1980s boasts one of the most famous engagement rings of all time: Princess Diana's oval blue sapphire surrounded by a halo of diamonds. Three of our very favourite wedding ring trends were inspired by this royal stunner: oval-cut centre stones, coloured non-diamond gemstones, and halo settings. In fact, this ring was so iconic that Prince William proposed to Kate Middleton with it — causing another resurgence in the popularity of colourful centre stones. The styles in this ring, from the unique elongated oval-shaped stone to the brilliant colour, are as timeless as they are modern and stand out in a sea of "typical" diamond engagement rings. But perhaps our favourite "trend" here is that this ring is a treasured family heirloom that's been passed down from one generation to the next. Talk about priceless!" — Jenna Miller, creative director at Here Comes the Guide
Get this ring: Diamond Nexus Lady Of Kensington Oval Cut Engagement Ring, Sapphire ($1,154)