You can order this pendant in gold as well as any other item

Medium weight:
Metal: 925 silver
Weight: 25 g (0,88 oz)
Size: 45 x 40 mm (1,77 x 1,57 inch)
one-sided pendant

Heavy weight:
Metal: 925 silver
Weight: 43 g (1,5 oz)
Size: 45 x 40 mm (1,77 x 1,57 inch)
one-sided pendant

portal of stave church Borgund - https://de.wikipedia.org/wiki/Stabkirche_Borgund#/media/File:Stave_church_Borgund_west_portal.jpg

Valknut is an ancient Norse symbol. It is often called Hrungnir's Heart, after the legendary giant of the Edaas. It is also know as the knot of the calin, and it has been found on stone carvings with funerary motifs, possibly a symbol of the afterlife. The nine points are suggestive of the nine worlds and the nine fates of Norse mythology.

Chain not come with the pendant.