The charity Crimestoppers puts up the cash in the hope of catching the men who raided Hamilton & Inches.
There's a reward of £5,000 available for help catching armed robbers who raided an Edinburgh jewellery store.
The gang targeted Hamilton & Inches on George Street at arond 11.30am on 6th June - stealing watches and necklaces worth more than £1 million.
The independent charity, Crimestoppers says the reward will go to anyone who calls them with information which leads to the arrest and conviction of the raiders.
Three masked men dressed in dark clothing rounded up staff in the shop and threatened them with various bladed weapons.
The trio smashed a number of display cabinets before making off with goods, including a £325,000 diamond Chatila necklace and eight Patek Phillipe watches ranging from £22,000 to £66,000.
All of the suspects were then seen getting in to a white BMW car with a waiting driver which was abandoned in Gloucester Lane.
They then switched to a dark blue Honda CRV that was seen heading towards Stockbridge.
The Honda, a late 2007 model, is thought to have travelled north along Gloucester Street on to Kerr Street, then through the main Stockbridge thoroughfare towards Raeburn Place.
This vehicle was also abandoned, recovered in a car park at East Pilton Farm Rigg in Edinburgh.
Dave Hunter, Senior Regional Manager for Crimestoppers, said: “We urgently need to find the persons responsible for this violent crime.
"There would have been a number of people in the general area around the jewellers at the time of this offence, there may also have been people who saw the vehicles being abandoned or who suspect someone they know has been involved.
"We would urge anyone with information to contact us anonymously, safe in the knowledge that their identity will not be revealed.”
Any information about the raid can be passed to Crimestoppers anonymously on 0800 555 111 or through their anonymous online form.
Rewards will only be payable for information passed to Crimestoppers. Information passed to police will not qualify.