The 1849-O Half Dollar boasts a hefty mintage of over 2.3 million coins. However, that did not translate into a large number of Mint State examples. Either no one thought they would turn out to be rare or the collectors were too far away to obtain examples before they entered circulation. Of the Mint State examples that exist today, most are in the MS63 to MS64 range. Gems are exceedingly rare and we know of no superb examples.
Luster on the 1849-O Half Dollars goes from soft and frosty to bright and almost prooflike. Don't expect a sharp strike on this dare; invariably, most of the obverse stars will appear flat and weakly defined.