The presence of a space, or a diastema, between anterior teeth, is a common feature of adult dentitions. There are many techniques and materials that can be employed to close diastematas. Ceramic veneers represent a suitable option to correct the shape, symmetry and size of anterior teeth, and can also be used for diastema closure. Improved mechanical properties of lithium disilicate ceramic material allows the production of thin and highly esthetic veneers using a minimally invasive approach. This article reports a case of diastema closure using lithium disilicate ceramic veneers. A 25-year-old female patient sought treatment on a private basis complaining about the shape and spaces between her maxillary anterior teeth. After clinical examination and preliminary procedures, the veneer preparation was carried out. The next phase involved taking the impression at the same appointment, using additional silicone (Variotime, Kulzer). In the laboratory, the lithium disilicate ceramic (IPS e.max Press A1 HT, Ivoclar Vivadent) was used for fabrication of the veneers. After try-in and adequate surface preparation, a light-cured composite luting cement was used for cementation of the veneers (Variolink Esthetic LC neutral, Ivoclar Vivadent). The use of thin ceramic veneers with minimally invasive preparation represents a conservative approach for highly esthetic rehabilitation of diastematas.