Sustainability is central to Monica Vinader, who launched her brand in 2008. The designer creates pieces that use 100-percent recycled gold vermeil and sterling silver, with ethical diamonds that are traceable through the Kimberley Process. A favourite of Catherine, the Duchess of Cambridge, Monica Vinader is frequently worn by Bella Hadid and Olivia Palermo.
Monica Vinader Siren Stacking Ring (£80)