When Nokia announced the Lumia 600 and the international version of the Lumia 900, not precise price was given.
Well Clove (a UK based mobile phone retailer) wrote on their blog confirming the prices of both these phones.
The Lumia 900 will be sold for £486, while
the Lumia 600 will go for £228.
These prices are for the unlocked versions (no contract) and with VAT included, those are pretty good prices for them.
You can also pre-order the Lumia 900 and Lumia 610 from Clove right now, if you are in the UK.
Though Clove failed to give an exact ETA on when they will be available, previous rumors have already speculated a May 21st release date for UK residents
Source: Clove UK Blog