Square necklace charm from agete. You can use it by threading a chain through the middle. (The fifth photo is an example of use. The necklace is not included) Brand: agete Material: 10K Size: Approximately 0.5cm x 0.5cm Purchase certificate: None Price negotiation: Please consult in the comments. There is also a hallmark, and it is definitely an agete product, but it is being sold at a lower price because the sales certificate has been lost and there is some discoloration. I like it, so I'm hesitant to sell it. Please understand that I may suddenly cancel the listing.