Copper bearing mokume-gane is never recommended for intimate contact
with skin. The maker does not tell us what metals are in the
laminate but it appears to be a copper/sterling stack. This ring will
invariably turn the wearer’s adjoining fingers green. In the a worst
case scenario the chemistry of the owner may actually etch the
copper out of the laminate. We have seen this, it looks just like a
nitric acid etch! Finger rings should be made from all precious metal
laminates.