Sri Lankan jewels - cornflower blue, ... the centrepiece of the engagement ring presented by the Prince of Wales to the then Lady Diana Spencer was an 18-carat sapphire from the island.

WATCH: Most iconic royal engagement rings of all time. In January 1923, Elizabeth was given a Kashmir sapphire – one of the rarest and most valuable sapphires known for its striking cornflower ...

It’s all about how a stone speaks to you. Experts at the Pantone Color Institute may have the answer as to why. “When used together, the clean and crisp character of cool colours can imply ...