In place of her engagement ring, Kate wore a gold band encrusted with white diamonds and sapphires—a perfect and more casual alternative to the royal’s iconic sapphire-and-diamond engagement ...

The blue stone is surrounded by 14 solitaire diamonds and set in 18-karat white gold. ... a sapphire-and-diamond brooch that was commissioned by Prince Albert in 1840 for his then-fiancée, ...