“I don’t believe an engagement ring has to be a diamond. Anything you find beautiful—a perfect single pearl, so chic—is right ...

Below, we’ve broken down some of the best places to purchase star-worthy engagement rings online — from Blue Nile ‘s ...

The textured gold mount centering a collet-set pear-shaped sapphire surrounded by brilliant-cut diamonds, size 49, signed Gianmaria Buccellati, Italian maker’s and assay marks for gold.