The presale ended March 7th. The start of the main sale hasn't been announced yet. You can find the amount collected so far here: https://grain.io/tokensale
2578 ETH collected
Softcap: €3 million ($3,35 million)
Hardcap: €30 million ($33,49 million)
You can find information starting on page 19 of the whitepaper here: https://grain.io/grain-whitepaper-v101.pdf?1
When will the GRAIN token sale start and end?
The ICO is postponed until later in March (new starting date TBA), to comply with new Swiss regulations.
You can check out the finma site here: https://www.finma.ch/en/news/2018/02/20180216-mm-ico-wegleitung/