Exhibit 99.1 1stDibs Reports First Quarter 2024 Financial Results New York, NY — May 8, 2024 — 1stdibs.com, Inc. (NASDAQ: DIBS), a leading online marketplace for luxury design products ("1stDibs" or the "Company"), today reported financial results for its first quarter ended March 31, 2024. First Quarter 2024 Financial Highlights • Net revenue was $22.1 million, a decrease of 1$16.0 million, an increase of 7% year-over-year. • Gross margin was 72.5%, compared to 67.1% in ...