Lost gold engagement ring with a round diamond and vintage design near the creek in Redwood National Park.

I lost my engagement ring while hiking in the Redwood National Park near Humboldt County last Saturday. It's a beautiful gold band with a round diamond and a unique vintage design. I noticed it was missing after taking a break near the creek and have retraced my steps several times but haven’t been able to find it. It holds a lot of sentimental value, and I'd be incredibly grateful if anyone has seen it.