First off, nice finds! Special congrats on the beautiful ring. Secondly, yes, I would have dug it as well. For those who may not have read the posts I wrote for Minelab's Treasure Talk blog, here is an excerpt from one of them......
If you are passing over targets represented by the X-TERRA 70 and the 705 with a numeric TID of +2, +4 and +6, you risk missing rose gold rings, platinum rings, white gold rings and some foreign coins.
If you are passing over targets represented with a TID of +6, +8 and +10, you risk missing more white gold rings, more platinum rings, thin yellow gold rings, lead and brass shells and the US nickel 3-cent piece.
If you set your detector to reject TID numbers +14 and +16, you will risk missing very thin silver coins, the $1.00 US Gold coin, thin yellow gold rings, Shield nickels, Liberty V nickels, 40% silver War nickels, many wedding bands, 10kt class rings, tokens and more foreign coins.
If you set your notches to reject +16, +18 and +20, you will risk missing gold rings, tokens, various gold jewelry, 14kt rings, brass, the US $2.50 Gold piece, Indian Head cents, Flying Eagle cents, more foreign coins and even large 10kt class rings.
If you rejected notch segments +20, +22, +24 and +26, you risk missing more Indian Head pennies, the US silver 3-cent piece, the US $5 Gold piece, large gold rings, small silver pieces, gold jewelry and medallions, and still more old tokens.
If you want to read the entire article, you can find these links in our FAQFAQ section.
Notch Discrimination on the X-TERRA - Ever wonder what you're missing? Part 1
http://www.minelab.com/usa/treasure-talk/notch-discrimination-on-the-x-terra-ever-wonder-what-you-re-missing-part-1
Notch Discrimination on the X-TERRA - Ever wonder what you're missing? Part 2
http://www.minelab.com/usa/treasure-talk/notch-discrimination-on-the-x-terra-ever-wonder-what-you-re-missing-part-2
HH Randy
http://www.minelab.com/usa/treasure-talk/notch-discrimination-on-the-x-terra-ever-wonder-what-you-re-missing-part-2