I have bought this ring many years ago on Ebay for peanuts.
It's kind of cool, I don't know if its real but the enamel look real/deep. Maybe you can take a look and let me know if this is a genuine WW1 ring or just a fantasy piece. Stamped 800 on the inside of the band.

Kris.

WW1_Ring1_1.jpg (105.98 KB, 65 downloads)
WW1_Ring2_1.jpg (96.73 KB, 65 downloads)
WW1_Ring3_1.jpg (101.64 KB, 65 downloads)
WW1_Ring4_1.jpg (83.7 KB, 64 downloads)