K18 0.1ct A刻印 (Akar brand) Rose-cut diamond The arm has a thin design when viewed from the side, but it becomes thicker when viewed from directly above, and the arm has a matte finish. The rose-cut diamond and the matte finish create a very nice atmosphere. There is usually a hallmark on the inside of the arm, but since this one is thin on the side, the hallmark is on the diamond's base. Akar brand logo, K18, 0.1 diamond hallmark I said the arm is thin, but unlike the very thin rings you often see, it has some width, so it won't deform when pressed. It's a sturdy arm, so I think it's fine. No accessories, no box Bubble wrap packaging, anonymous Mercari delivery