There is a very good chance it will look "green" tinted once installed, even with white thinset. This is very common with glass tile. Once you install and grout them, you block the light from being able to pass through the sides of the glass tiles and they will look different. I would try to find a grouted sample board to see what it looks like installed. Another option, if they aren't crazy expensive, is to buy a box and do a sample installation on a piece of drywall.

Just searched on Houzz and these are supposed to be Glazzio versailles ... look at the questions below the photos for more information. You can also email the designer/owner for more information.

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