Every product on this page was chosen by a Harper's BAZAAR editor. We may earn commission on some of the items you choose to buy. Rubies, known to be the symbol of love and romance, are also the most ...

Not all of the royal ladies have classic diamond engagement rings – in fact, the likes of Kate Middleton, Princess Eugenie and more have been given unique and colourful jewels from their husbands.

Often used as side stones, as halos or as eternity band fodder, gemstones (that is: rubies, emeralds, sapphires, coloured diamonds, et al.) usually play the supporting role—and play it well. So when ...