Marin Kitagawa Enamel Pin
From the anime My Dress-Up Darling! Marin strikes a pose in front of a glittery baby pink diamond background. 35mm tall and gold plated with two rubber clutches on the back.
B grade pins are imperfect and will have minor flaws such as a tiny dent or scratch in the plating, a speck of enamel missing, or a small patch discolouration in the plating. A grade pins don't have any noticeable flaws.