To turn out on the engagement or wedding day looking every bit like a princess, people always have a backup option to pretty much everything they wear and constitute to the big day look.
East-west set diamond engagement rings to have the gemstones set east to west in the ring rather than north to south. It does not apply to round-shaped gemstones, but pretty much any others work.
While the round and princess cut diamonds have always dominated the market, the popularity of pear cut diamonds is on the rise these days owing to their symmetry and femininity.