I'm not sure if this is right or not, but I tried looking it up and this is what i found. Platinum mark 777 ppt pure platinum alloys "ppt" parts per thousand Your chain is a platinum chain with 777 p.purity mark
What do these numbers mean on my tiffany heart pendant m70396
its three numbers
What is the spiritual meaning of 777?
The numbers 696 are some times seen stamped on articles of jewelry. However, these numbers do not match any known metal quality used for jewelry making.
1025
777 means seven hundred and seventy seven
They are similar but in terms of passenger numbers and payload, the Boeing 777 is slightly bigger.
777 is the holy numbers
The range is 408. (777 - 369 = 408)
The number 925 marked on a jewelry denotes that it is made of sterling silver. Numbers are used to indicated the type of material used in making the jewelry.
777 is the God number. It means to be with Christ and to do the right thing (integrity).