known as "the Sherlock Holmes of diamonds," is a London-based luxury lifestyle manager and jewelry expert. Born Julia Dimitrova in Radomir, Bulgaria, she overcame early struggles under communism before launching her jewelry career in New York. Now based in London, she leads Julia Castelli Lifestyle Management, sourcing rare jewels, couture, and bespoke items for ultra-high-net-worth clients. In 2023, her firm was named "Lifestyle & Travel Management Firm of the Year" at the LUX Global Excellence Awards.

Julia has collaborated with over 50 top luxury brands. She’s also a certified life and business coach, Rapid Transformational Therapist, and host of the 2024 podcast Show Me Your Diamond, which explores healing, growth, and personal transformation.