I'm not sure if it's Navajo, but there's an inscription that seems to be the artist's name next to "Sterling." I can't read anything except the first letter, "T." I like the sulfide color, so I haven't polished it. There are minor scratches from use, but it's generally in good condition. Inner circumference: 13.2cm Opening: 3.6cm Width: 3.7mm Thickness: 2.5mm Please assume there may be slight discrepancies in the measurements. Color: Silver系 (Silver-toned) Material: Silver 925 Accessories: None Scratches/Discoloration: Yes