Delicate black band ring is understated with tiny gunmetals X's inside of black enamel squares and metal trim. Looks quite old, probably 1930s-40s.

Marking ▻ None 
Size ▻ 7  |  1/8" wide
Condition ▻ Excellent with some patina to the metal, mostly inside the band
 
This is a one of a kind find, there's only 1
E-mail [email protected] for any questions ♡