This ring is handmade jewelry by a Japanese designer named Natsuko Sakurai, and I got it directly from her about 10 years ago. Although there are inclusions, the large, very colorful emerald is matched by the K18 base of this beautiful ring.
I have many accessories, cosmetics, clothes, etc. on display in addition to this item. I will give a discount to those who can purchase in bulk, so please comment if you would like to do so.