Good Morning Nina! Good to hear of your hallmark success but you haven't figured out the date to the year, as you would know the exact year by the date letter. Can you see a letter, inside your Antique Ring (1860s means your ring is antique not vintage) usually the end letter of a hallmark series.
In the 1860s - 18k high quality gold was the traditional chose for antique wedding rings. Could you please let us know which hallmark guide you used?
If the item isn't gem set, which is likely if the ring is a plain antique wedding ring, you can get it valued online by experts. Yes you will need photos.
