A tweet posted in 2014 was thought to be the most valuable at the time as it donated $11 000 to a charity.
This week's court ruling to say that Gareth Cliff must be re-instated as an Idols judge may also see him awarded the R25 million in damages which would make the tweet that sparked this issue very valuable.
People really don't understand free speech at all: https://t.co/97MWi6jrww— Gareth Cliff (@GarethCliff) January 4, 2016
But the title for most valuable tweet should be Oprah Winfrey's post this week inviting her followers to join Weight Watchers with her. The tweet may not have received as many re-tweets and likes as you might have expected considering she has 30 million followers.
However, after the tweet was posted, Weight Watchers' share price shot up and considering that Winfrey owns 10% of the stock it certainly increased her value.
The Guardian calculated the increased value and put it at approximately R200 million.
Since the tweet was posted on 26th of January, the share has fallen again, but it is still above the level it was before the tweet which for now means it qualifies as one of the most valuable tweets ever sent.