Quick gem ID test

I appreciate for reading my massage and taking your time to write me in long details
I use the majority of what you said and agree with them but I think , not possible to do all of those tests you mentioned above at the market or on the field, but I use some to get a good idea what sort of gem I am seeing and what is the quality.
I see you perfectionist so , could you please tell me what is the best way to color grade a cut gem as a reliable source ( close to GIA grading system ) I will not use software or any device as they will not be accurate as what we see on the catalogues or papers. I have not GIA color grading Gemset and I was told Gem Dialogue is the best option and competitive with GIA color grading system.
Ali