A 925 is an indicator indicating that the jewelry is manufactured from sterling silver. In this article, CZ refers to Cubic Zirconia.Inside the ring there's no other number or letters its merely a dots it only realy such as this ( …. )幸福や繁栄、縁起が良い等めでたい意味があり、“菊を飾ると福がくる”とも言わ�