“A master at blending timeless grace with today's fast-paced world, Mariah is on a mission to help us all standout, live intentionally, and exude confidence in every interaction.” ~ Frances Valentine
Meet the Founder
Mariah Grumet Humbert is an etiquette expert, author, and lifestyle enthusiast. As the founder of Old Soul Etiquette, she champions the idea that etiquette is much more than a set of rules– it is a powerful tool to help individuals build confidence, create meaningful connections, and share their gifts with the world. With her warm and modern approach, Mariah helps her clients navigate the nuances of various social and professional situations with authenticity, kindness, intention, and a strong level of emotional intelligence.
Mariah founded Old Soul Etiquette in 2021 when she left her career in fashion to bring her passion for timeless style, the art of living well, and social confidence to life. Today, she works with individuals and organizations across the globe, offering private consulting, interactive workshops, webinars, and keynotes on topics such as social, dining, and business etiquette, first and lasting impressions, personal branding, the art of conversation and small talk, the power of your professional presence, and more. Her clientele spans a diverse range of industries, including high jewelry, finance, real estate, hospitality, entertainment, and beyond. Mariah is based in New York City and is available to travel by request.
Mariah is also the author of the modern wedding etiquette book, What Do I Do? and The Essential Wedding Planner. Her 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.
Some of Mariah’s favorite things include her family, a hot cup of tea, I Love Lucy, long walks, vintage fashion, a good beach read, a big bowl of pasta, The Marvelous Mrs. Maisel, playing tennis, any Frank Sinatra song, antique shopping, and of course, New York City.
Certifications & More
Graduate of The English Manner and Beaumont Etiquette’s Train the Trainer Grade One Program
Certified in Corporate and Youth Etiquette Training through The Protocol School of Palm Beach
Member of The International Etiquette Trainer Society led by The Protocol School of Southern California
Bachelors Degree in Fashion Merchandising through The University of Delaware Department of Fashion and Apparel Studies
Page Photography: DeVoss Photography and Jesse Volk
