Colour again is self explanatory. “D” is the highest colour attribute on the diamond scale, being termed colourless. This is fantastic again if you have the funds. “G” is still good. “H”… well once again in smaller stones maybe but in larger stones it may start to degrade the overall appearance of the stone. For some, this again is a compromise they may choose to make for a larger stone however, I in my work will advise where possible to avoid going below G. Below is a colour chart where you can see the colours in relation to each other although this will not be so accurate on a computer screen.