Catherine, Duchess of Cambridge looked resplendent in Mouawad diamond and ruby drop earrings at the Commonwealth Day 2020 celebration at Westminster Abbey in London on March 9, 2020. The earrings are crafted from 2.52 carat of diamonds and 3.62 carat of rubies set in 18k white gold, and form part of a matching set with a necklace, bracelet and ring, featuring a total of 34.68 carat of diamonds and 35.27 carat of rubies.