A new documentary about the plus-size modelling world, Donna Karan is stepping down at Donna Karan International, sneakers made from ocean debris, and more news from the style trenches this week.

Fun Fashion Fact

Did you know that the classic round brilliant is the most popular diamond cut for engagement rings, and that vivid pink — coloured diamonds are extremely rare — is the most sought after colour, according to Tiffany & Co’s chief gemologist Melvyn Kirtly.