Launched in 2015 as a unique piece, Billionaire, first of the name, was an unheard-of timepiece. Created as a bespoke project, it had taken several years to craft. With 424 diamonds totaling 161 ct, Billionaire II took the initial concept even further by showing Jacob & Co.'s unique expertise in selecting and telling a story with gem-setting language. Its movement ended up under a particular spotlight as its filigree structure was set with 57 baguette-cut diamonds, another unprecedented feat. This paved the way for Billionaire III, whose 714 white baguette-cut diamonds gave way to a limited edition of 18 pieces. Billionaire III Diamonds and Rubies opened yet another door in the collection's repertoire with a flange, movement and crown set with a total of 134 rubies. This unique piece introduced a hint of color in the hugely successful series.