I do not offer a specific grading scale for my pins anymore as the rate of collector's grade pins made by my manufacturer is extremely high. I sort my inventory and make sure to send out the best available pin for your order. Please note that there could be slight cosmetic imperfections, as every pin is hand made one-by-one.
If there is a major issue with the pin, please send photos to me, and I will be happy to assist you.
For pins that have been graded:
Standard grade (A Grade): Highest grade I offer. Free of noticeable enamel flaws, or metal plating defects. Pretty much collector's grade.
Almost Standard grade (B+ Grade): Meant to be worn. Free of major defects but may have very minor or tiny specs or imperfections like small air bubbles in the enamel, small scratches, small places of low enamel fill, specs in enamel, small plating defects at the edges, etc. These imperfections are only noticeable when pin is inspected closely. Most errors in this grade would not bother the casual collector. But if you are more picky about the quality, I recommend you purchase Standard grade!