Even un-calibrated screens can show the difference between the colour balance of a set of shots.
As as set, the colour balance in these shots is not consistent.
It seems to be mostly a shift on the magenta green axis..
However as this is a "Photographic forum" where a number of people
Do use calibrated screens I think
@Kieranstandishphoto comments are faulty.
For his own class of work, for mostly public sales, then using screes as delivered is possibly the better choice, as they are usually set brighter, more saturated and more contrasty than would be Ideal for most photographers purposes, or when compared to a calibrated screen.
Also a screens colour rendition wanders over time, and soon moves both from the ideal, and from the colour balance as it was delivered.
Those of us who do use calibrated screens, do see very similar colour renditions to each other, even thought the actual colour gamut of our screens may be wider or narrower than others, the balance will be consistent.
If you want to see if your screen is anything like neutral, then look at the actual RGB numbers of what you see as a neutral grey in an image.
If the grey is truly neutral then all the RGB numbers will be equal. However that is rarely the case as even a grey card is often illuminated by mixed lighting or varies over the surface by other reflected light.
This is why a hardware screen calibrator is so useful as it eliminates these variations.
Joe public rarely use calibrated screens and what they see is anyone's guess.
