Blue Nile allows you to sort by diamond type — as is the case with other online jewelers on this list — but it also provides a custom edit of “Our Engagement Ring Picks” for a more curated ...
From Beyoncé's emerald-cut stunner to Kate Middleton's meaningful sapphire sparkler, celebrities' jaw-dropping engagement rings ... set in platinum. Gabrielle Union’s 8.5-carat cushion-cut ...