Luka Doncic

What does a Luka Doncic autograph cost?

This is the widest market on this page by some distance. The cheapest certified items are under a hundred dollars and the dearest runs to six figures, a spread of more than a thousand times. That gap is not about the signature at all: it is the difference between an ordinary signed card and a serial-numbered rookie autograph, which are separate collectibles that happen to share a name.

What of his gets signed most often?

Cards, and the concentration matters. A modern basketball signature arrives largely through card manufacturers rather than in person, so the market is shaped by which products included an autograph and how few of each were made.

Why do two of his cards sell for such different amounts?

Because print run and parallel do most of the work. Two signed cards of the same player from the same year can differ by a factor of a hundred if one was numbered to twenty-five and the other was not. This index keeps each grade and certifier as its own market for that reason, and the boards above are grouped accordingly.