Diana Reser, a pioneering medical professional who holds Switzerland's first female heart surgery professorship, spent a quarter of a century assembling the massive assortment across her home and workplace. The extensive inventory was officially verified in Zollikon following a brief loss of the title earlier in the year. She leverages the international attention to advocate for preventative cardiovascular screenings and ease anxieties for patients awaiting procedures. Half of the extensive inventory consists of gifts from friends, family, and colleagues, while the rest was gathered during her international travels.
Key points
Diana Reser officially regained her Guinness World Records title after her 3,200 heart-sh…: Diana Reser officially regained her Guinness World Records title after her 3,200 heart-shaped objects were verified in Zollikon, Switzerland.
The collector is the first female heart surgeon to earn a professorship from a Swiss univ…: The collector is the first female heart surgeon to earn a professorship from a Swiss university.
Reser utilizes the visibility from her collection to urge people to get heart health chec…: Reser utilizes the visibility from her collection to urge people to get heart health check-ups by age 50 or earlier.
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For most people, a heart-shaped object might be a decoration, a piece of jewellery or a symbol of affection. For Swiss heart surgeon Diana Reser, however, it has become a lifelong passion that has filled her home and workplace with thousands of objects. From everyday household products to unusual artwork and souvenirs, her collection reflects both her medical profession and her fascination with the heart as a symbol of love and life.
Reser has reclaimed the
Guinness World Records title for the largest collection of heart-shaped items, with 3,200 objects officially counted on April 13, 2026, in Zollikon, Switzerland. According to a November 10 report published by Guinness World Records, she first secured the title in 2010 with 775 items but lost it in 2024 to American collector Susan West, whose collection contained 1,560 pieces. After continuing to collect for several more years, Reser has now more than doubled her previous record.
Collection began when she was a medical student
Reser's interest in heart-shaped objects began approximately 25 years ago, when she was studying medicine. After completing an internship in…
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