Ring size?

I will buy a puzzle ring but what is size 6, 6 1/2, 6 3/4, 7 etc...?
I have 18 our 19. Can somebody tell wich size I must order?

The best thing to do is take a ring of your own that fits perfectly and take that to be measured and have the store where you buy it measure the ring before you buy it, they measured my ring to ordered the right size but it was to big and they had to order a smaller size.( it has to fit right otherwise it will constantly turn around)

That's the problem here we measure in 18 or 19.
And where I will buy measures at size 6, 7 etc.
Also I will know if 7 is our 18 our 19 size

If you know your ring size there are lots of conversion charts on line to work out which size you need in another country's system.

http://www.lookinggoodtoday.com/informatie/ringmaat-opmeten

Maybe this helps?

http://www.lucindasfashionhouse.nl/index.php?action=extra&extra=A_kies_de_juiste_ringmaat&lang=NL

Thank you this is helping me. Now I know how to measure

Is your mailbox full? I can't seem to be able to send you pm's any more?.