18k gold. I have purchased from this vendor before, but it’s a pearl vendor (pearls check out). So the rest of the necklace has a circled Tahitian Pearl drop (I don’t doubt the pearl at all as they’ve always checked out - and pearls are my thing)! Beads… new to me.
No hallmarks, the “turquoise” beads are only 4mm as are the gold spacers and it’s pretty normal on something of that size /weight to not hallmark.
Not represented as Native American at all, just 100% natural Arizona turquoise. I do think they might fall for their bead suppliers promises however (and lack the expertise themselves) hence wanting to check the accuracy of the turquoise.