I got a gold ring give to me and it has number on the inside I know that it is quite old can eny body tell me what it means the numbers are (5316)

Are the numbers in parentheses like that?

I can't seem to find anything where the numbers would indicate the type of gold used or it's quality. It's most likely a jeweler's stamp.

Normal markings on gold would by like "18k" or "18750" or "CT18750" (which all stand for 18 karat gold)

Also, here's some information about Gold: All About Jewels: GOLD