Kate Middleton's had an on-again, off-again relationship with her engagement ring for a year. What's the royal secret about ...

Her stunning engagement ring is a sight to behold, consisting of 14 solitaire diamonds surrounding a 12-carat oval blue Ceylon sapphire set in 18-karat white gold. Her gold wedding band ...

he proposed to Kate with the same engagement ring that his mother, the late Princess Diana, received from then-Prince Charles - a 12-carat, oval Ceylon blue sapphire, surrounded by a halo of 14 ...