Can anyone help with the maker on this necklace, please?

Necklace has a very clear marking, but I have been unable to identify it. Any help with maker and age of the piece would be appreciated.

I have found this piece made by a Julalita Lamy, https://www.etsy.com/listing/596103415/vintage-zuni-julalita-lamy-sterling?gpla=1&gao=1&&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_a-jewelry-necklaces-pendants&utm_custom1=8f393039-9649-4605-be5e-1ea2450b77c9&gclid=EAIaIQobChMIhs7W2tDi2wIVlMJkCh3sKQUQEAYYASABEgJe3_D_BwE. I imagine the G might possibly be the husband, or child learning?