Jesus's tomb was very intrinsically recognizable.1 This is relevant because, if the tomb was intrinsically recognizable, then it by definition would be hard to mistake for another.
Robert Stein (NT professor): “…this was no Forest Lawn Cemetary-Jerusalem Branch, where one could mistake tomb 10,358 with look-alike tomb 18,494! This was a private burial tomb. We have no reason for concluding that there were similar tombs in the immediate area that could have been confused with this one.” [Jesus the Messiah (IVP, 1996), 267.]
In c. AD 30, The Jerusalem Church's official position was that “yes, Mary did discover Jesus's tomb empty.” This is relevant because the Jerusalem church knew exactly where Jesus's corpse was placed after being crucified.
C. E. B. Cranfield (NT scholar at Durham): “…it is difficult to imagine how [a wrong tomb] mistake would not have been quickly corrected.” [“The Resurrection of Jesus Christ.” in The Historical Jesus in Recent Reserch, eds. Dunn & McKnight (Eisenbrauns, 2005), 390.]