Everything about this throwback photo is perfection, from the blissful smiles on the couple’s faces to Kate’s stunning blue Issa dress (which sold out within 24 hours!).
Of course, the most touching moment of Will and Kate’s engagement involves the ring, which was famously Princess Diana‘s engagement ring.
“If his mother were alive, she’d probably give him that ring to give to this young woman,” Kitty Kelley, author of The Royals, told PEOPLE at the time.
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