Mariah Grumet Humbert

Etiquette expert and author Mariah G. Humbert is leading a new era of etiquette. She champions the idea that etiquette is far more than a set of rules — it is a powerful tool to help individuals shine with confidence, forge meaningful connections, and distinguish themselves. With her warm and fresh approach to a timeless art, Mariah equips her clients to navigate the nuances of various social and professional situations with ease, kindness, intention, and a strong level of emotional intelligence.

Mariah left the corporate fashion world in 2021 to pave her own path, building a business centered around helping people share their gifts with the world in a polished and confident way. Mariah offers bespoke consultations, training sessions, and keynotes on various topics of modern etiquette, personal branding, special event preparation, and more. Think of an old-fashioned finishing school, only not old-fashioned at all! Her clientele spans a diverse range of industries, including high jewelry, finance, real estate, hospitality, entertainment, technology, education, and beyond. Mariah is based in New York City and is available to travel for speaking engagements and events by request.

Mariah is a proud member of The International Etiquette Trainer Society and The International Association of Professional Image Consultants. She is also the author of the modern wedding etiquette books, What Do I Do? and The Essential Wedding Planner. Mariah’s expertise has been sought after by The Today Show, NBC News, Fox News, Forbes, Southern Living, The New York Post, Travel & Leisure, Brides, Martha Stewart, and more.