Diamonds are colour graded face down so that the dispersion (fire) of the diamond doesn't interfere. Most people's eyes will not detect any yellow in the colour of a diamond until the H colour, and even then only face down. Face up, it will still look white.
So, yes it's a good colour.
Diamonds are graded based on the the 4 C’s which are cut, color, clarity and carat. The colors are graded based on the following: D, E, F G, H, I, J, K, L and M, developed by the Gemological Institute of America. It depends on which shape you are referring to as you must make sure that the diamonds you are looking at are the same shape so that you can see the difference between a G, H and I color diamond for e.g. However, to answer your question, an H color is considered good for a diamond as it is higher up on the grading scale.
The highest grade for 'white' diamond colour is D, not A. D is a higher grade than H in diamond colour.
These letters -- G and H -- are used to describe a diamond as 'near colourless'. You can review them on the scale of diamond colour, below.
"Good is relative." From an investment point of view, the J colour is in the 'yellowish' cast category, because the slight yellow colour can be detected by the human eye beginning with H colour. The least yellow diamond is classified as a D colour.
You can read from the chart, below, and learn where G and H fall in the diamond colour range.A "G H" colored diamond means that it is in the near-colorless range on the color scale. The diamond color scale was developed by GIA (the Gemological Institute of America) in the mid 1900s. Before GIA developed this scale, there was no universal way of grading diamonds, so diamond grades ended up being widely varied and confusing. The diamond scale starts at "D", meaning that it is completely colorless, and extends to "Z" meaning that the diamond is extremely saturated with color (can be either yellow or brown--the hue doesn't matter). Diamonds in this color and beyond are considered to be "fancy" colors based on colour saturation.Face up, the general population won't be able to tell the difference between a "G" and "H" colored diamond. In a setting, they will look white, unless you put the diamond in a yellow gold setting; in this case, the yellow hue from the ring will be reflected into the diamond, causing the diamond to seem tinted yellow.Most people stick in the "G H" color range because you can get more "bang for your buck."
On the high end, a 1 carat, round diamond in a D color, IF clarity GIA certified diamond is for $8126 and if you adjust the color and clarity, a 1 carat H color, VS1 clarity GIA certified diamond is for $3496.
Every diamond is valued by its cut, clarity, colour in addition to its carat weight.
A GIA round 3 carat F color, VVS2 clarity diamond can cost about $56,900 and 3 carat round H color, SI2 (100% eye clean) clarity diamond costs about $25,951. You can select a good quality diamond if you focus on the cut and compromise on the clarity, depending on your budget.
If we select the popular cut which is round, then a 1 carat round cut diamond of H color and SI1 clarity will cost approximately $4129. You can visit www.dubaiwholesalediamonds.com/diamond-searchfor more options.
The starting price for a round H color, VS2 clarity diamond is $3736 and it goes up to about $12,000 depending on the clarity and color.
The value of diamonds depends greatly on their clarity, the quality of their cut and their color. To purchase a 3 carat diamond from a retail source with quality better than SI2 you will be spending at least 20 thousand dollars!
A very clear white diamond would bea goo traditional choice.
A round 2 carat GIA certified H color and VS1 clarity diamond is for $13, 814.