Cameo brooch. Can also be used as a pendant top. Purchased overseas. There is a signature on the back. (There appears to be a signature on the front as well.) Unused and stored away. There is some aging of the gold parts. The case has cracks and missing parts. Please check the condition in the images before purchasing. Also, if you would like to see images of specific areas, please comment. Marking: 750 (k18) Please refer to image 12. Weight: Approximately 5g (cannot measure in 0.1g increments) Please refer to image 14. Size: Approximately 4.5cm (including the金具 part for the chain) Please refer to image 14. The red case is for photography purposes only. It is not an included accessory. The product contents are the case and brooch shown in image 2 only. Please confirm the above with the images before purchasing. Will be shipped via Yu-Packet Post Mini.