The lucky pair, from Dalkeith, were due to talk about their £856,640 windfall at a press conference in the Capital today. They matched all six numbers of the midweek May 2 National Lottery draw – which were 18, 22, 25, 35, 39 and 41.
They shared the jackpot with two other winners.
The couple are not the first in the region to strike lucky this year.
In February an Edinburgh lottery player scooped £250,000 on the EuroMillions – and claimed the prize two weeks after the draw.