Jessica Ennis-Hill says she is thrilled to "finally be receiving my gold medal" after the woman who beat her to top spot at the 2011 world championship was stripped of her title due to a doping offence.
Ennis-Hill, who announced her retirement from athletics last month, finished runner-up to Tatyana Chernova in Daegu five years ago.
The Russian had her results in the two years immediately prior to her 2011 triumph annulled after a sample from the 2009 world championship was re-analysed and tested positive for a banned steroid.
While last year's initial sanction stripped Chernova's results up to 14 August, 2011, two weeks prior to beating Ennis-Hill in South Korea, the Court of Arbitration for Sport has ruled she must now forfeit her gold medal after an analysis of her biological passport dating back to 2009 showed evidence of blood doping.
CAS said in a statement: "All results achieved by Tatyana Chernova between 15 August, 2011, and 22 July, 2013, are annulled and the athlete will forfeit any titles, awards, medals, points and prize and appearance money obtained during this period."
Soon after the CAS statement came out, Ennis-Hill issued a message on Instagram alongside a picture of her and a celebrating Chernova in Daegu.
She said: "This image was forever imprinted in my mind! However much it drove me on for what I was about to achieve at my first Olympics in London, in my heart I just knew it was wrong. So happy to finally be receiving my gold medal. Triple World Champion WOW."
The 30-year-old, the 2012 Olympic champion, claimed her other two heptathlon world golds at Berlin in 2009 and Beijing last year.
As a consequence of the CAS ruling, Germany's Jennifer Oeser is set to be promoted from her third place finish while Polish athlete Karolina Tyminska will now be given a bronze medal from the 2011 championships.
CAS' decision means Chernova also loses her London 2012 bronze medal, with Lithuania's Austra Skujyte upgraded from fourth place.
CAS also confirmed Chernova would be "sanctioned with a period of ineligibility of three years and eight months, beginning on 5 February, 2016."
However, the statement added: "Ms Chernova's period of suspension from 22 July, 2013, until 21 July, 2015, previously imposed by the Russian Anti-doping Agency (RUSADA), is to be deducted from this sanction."
Also included in Tuesday's statement were details of sanctions for Russian track duo Ekaterina Sharmina and Kristina Ugarova after blood doping was identified following analysis of their athlete biological passports.
Sharmina's ban is for three years, beginning on December 7, 2015, with all results achieved by the 800m runner between June 17, 2011, and August 5, 2015, annulled.
Ugarova, who competed over 1500m, must serve a suspension of two years, beginning on September 7, 2015, with all of her results annulled between June 26, 2012, and December 25, 2012.