Tina Marcos is a Graduate Gemologist based in Geneva, Switzerland. Born in Brazil and raised in Geneva, she has also lived in London, New York and Tel Aviv.

Her jewelry collection is inspired by her multicultural background and international experience.

After graduating with a Master's degree in International Relations, she went on to work with several renowned luxury watch and jewelry companies, where she acquired most of her experience and passion for this industry. Her interest in this field prompted her to pursue a career in gemology.

She attended the Gemological Institute of America (GIA) in London, where she earned her Graduate Gemologist Diploma in 2006. After interning at the Diamond Bourse in Tel Aviv with a company specializing in yellow diamonds, she launched her own collection named Jewels by T♥ in 2008.