Clermont are now fifth in the Top 14, one point behind Biarritz Olympique and Stade Francais Paris, and Jones has already scored 86 points.
Leading the championship are the reigning Heineken Cup champions Toulouse, who had a try from Welsh Grand Slam skipper Gareth Thomas to thank for making it six wins out of six in their 30-22 win over Perpignan.
As well as scoring his fourth try of the season, Thomas also made another for fellow win Cedric Heymans in another outstanding performance.
RGC 1404 have celebrated their crowning as Division One East winners, after just one season of competitive rugby. A big crowd turned out to support the clubs 'Celebration Saturday' when they were presented with the SWALEC trophy following their definitive 45-0 home win against Rhydydfelin on 18 May.
A special video package as Pontypridd claimed the double for the first time in their history by winning the Principality Premiership final, including match build-up, highlights, post match reaction and dressing room celebrations.