Episode 4 — Building Trust in Natural Diamonds: A Conversation with Barend Petersen May 20, 2026 In this episode of Beyond the Vault, Colleen Rooney sits down with Barend Petersen, Executive Chairman of De Beers Group South Africa and an ordained minister, for a candid conversation about responsible mining. Barend shares the powerful connection between his spiritual foundation and his work at De Beers; also sharing how he has witnessed firsthand how diamonds have created tangible good in mining communities. Tune in for a values-driven perspective on impact and the future of natural diamonds from someone at the heart of the transformation. Read more
Episode 3 — Protecting the Diamond Dream: A Conversation with Feriel Zerouki April 21, 2026 Colleen Rooney sits down with Feriel Zerouki, President of the World Diamond Council, the first woman to ever hold the position. Feriel shares her path into the diamond business, what it took to build a career in a traditionally male-dominated industry, and the remarkable accomplishments and innovations she championed over her 20-year career at De Beers. Read more
Episode 2 — Building a Legacy: A Conversation with Susan Jacques March 10, 2026 On this episode of Beyond the Vault, Colleen Rooney chats with Susan Jacques, longtime industry leader and former GIA CEO. Susan talks about getting started in jewelry, her memorable conversation with Warren Buffett about becoming CEO, and shares advice for anyone interested in the industry. They also touch on GIA's history, diamonds in Botswana, and current industry challenges. Read more
Episode 1 — The State of the Diamond Market February 10, 2026 In our premiere episode, host Colleen Rooney, Chief Corporate Affairs & Sustainability Officer at Signet Jewelers is joined by renowned global diamond industry analyst, Paul Zimnisky.