Perle di qualità? La dazione ai fini dell'acquisto tra utilità delle parti e atipicità negoziale

In Ulpian's text about the delivery of some pearls with the purpose of their evaluation (D. 19.5.17.1) the jurist answers the question concerning risk of damage or loss of the item according to the principle of utility. This paper aims to analyse this source considering similar Digest texts in order to verify which effects this principle has on the datio ad inspiciendum. Based on the results, this paper also aims to integrate this case within the atypical agreements.