Netherdale Red Deer's stag 5/2017 fetched the highest price in the country for a velvet sire, selling for $56,000.
David and Lynley Stevens held their combined Bidr and on-site sale in Balfour on January 13.
The stag, by top sire Harlem, was bought by commercial deer farmers Kelly and James Hudson, of Timaru.
Mr Stevens said the sale attracted a lot of interest.
"We ended up with quite a variety of people come down from the North Island and Canterbury.