Like many other Ivorian stars, he began his career at the famed youth academy at ASEC Mimosas, run by Frenchman Jean-Marc Guillou in his home country.

At the end of the season, Lorient narrowly missed out on promotion to Ligue 1, and with speculation mounting linking the Ivorian to top flight sides such as OSC Lille, RC Strasbourg and AJ Auxerre, Koné received a standing ovation in his final appearance for his club.

In the summer, Koné finally made his move, relocating to the French Riviera at top flight side OGC Nice, where he signed a four-year contract.

After signing a contract extension to 2009 with the Côte d'Azur side, he went on to score four times in his first eight appearances for the club.

The proposed transfer was held up however, with a disagreement over the fee, a situation which caused Koné to miss pre-season training at OGC Nice, apparently as a protest.

[7] The saga went further, with Nice's president, Maurice Cohen, stating that their south-coast rivals had till 15 July to sign the striker, otherwise the club would speak to other interested parties.

"[9] Marseille's president, Pape Diouf, echoed Koné's comments, stating: "Ultimatums not only fail to impress me, but they also never provide a solution.

[11][12][13] In March 2009, Koné was named Ivorian Player of the Year, ahead of FC Barcelona midfielder Yaya Touré.

[14] On 26 May 2010, Koné signed for Qatar League side Lekhwiya along with his Ivorian teammate Aruna Dindane.

Koné made his international debut for the Ivory Coast national team against Sudan on 5 September 2004.

He made four substitute appearances for the Elephants, and scored once against West African rivals Guinea in the quarter final stage, where the Ivorians ran out 5–1 winners.