New vintage Diamond cuts 925 silver band ring (lighter heart)

New vintage Diamond cut 925 silver band ring (lighter heart) Quick list Gorgeous rustic industrial minimalist modern: Superb Mexican design and craftsmanship! Using just Diamond cuts, Ottoman ribbed texture, and some disco vibes in the borders! 🪩 Looks like a clockwork cog so there’s a steampunk vibe too. New vintage c. 1970s. Probably handmade in Mexico. Genuine silver. Hallmarks: 0.925, MEX, GM42 (or GMA2), heart with an arrow through it) Size: Group photo shows variety in the collection. Note: I polished this with some toothpaste