A Lora for a traditional Viking torc, an ornamented open ring worn around the neck, generally made of twisted bronze, copper, or iron. This Lora includes two tagged variations, one is spiral_torc and the other is wolfshead_torc . The spiral_torc tag does introduce the spiral part of the tag into the rest of the image, resulting in some spiral patterns in not necessarily related locations.

An example prompt:

close-up, portrait, collarbone, head tilt, light smile, hand on own chest, 
looking at viewer, sexy, teasing, eyeliner, parted lips, viking_torc, necklace,
viking, blue linen dress, norse trim, small breasts, cheekbones, square neckline, white long sleeves undershirt, white long sleeves, blue spaghetti strap, 
backlighting, perfect shading, simple background, dark background, forest, moonbeam,
auburn hair, blue eyes, hair up, braid, short hair, 
dramatic lighting, cinematic, perfect shading, concept art, 
<lora:Viking_Torc:0.8>

A very valuable tag for your negative prompt is:

pendant

I think the necklace tag connotes with pendant often enough that it closes the front of the torc with a pendant.

Try it out and have fun!