As a descendant of the British broodmare Pinprick, Black Caviar is a product of the same branch of Thoroughbred family 1-p, which also produced the Classic winners Ambiguity and Sodium.
Mivel a brit Pinprick tenyészkanca leszármazottja, Black Caviar szintén ugyanabba az angol telivér 1-p családba tartozik, mint a Classicot megnyerő Ambiguity és Sodium.