Sterling 925 NV silver and turquoise ring size 10

A very pretty ring marked 925 NV and also marked 10 with another oval mark next to it. It appears there are words inside the oval but I can't make it out. The #10 is for the ring size I'm sure. Pretty dark turquoise stone and pretty scrollwork all along the sides of the sterling silver ring. Excellent condition. The ring weighs 5.7 grams.