help needed

what does jsn 9k dia engraveg on my gold and do you know how much its worth thanks.

jsn is the makers name and 9k means it is 9 carot gold, cheapo stuff I'm afriad so won't be worth a lot, dia I have no idea but in Engineering speak it means diameter.

These guys are pretty fair if you want to sell it...

http://www.gold-traders.co.uk/