Vintage Dyrberg Kern shops w/crystal or clear stone signed silver bold necklace

Product Name: Vintage Dyrberg Kern shops w/crystal or clear stone signed silver bold necklace
Vintage plz view all photos for reference to these pieces it's a chunky silver necklace w/ pendent. The pendent is stamped w makers mark on back. I can't find this particular one online. I will leave this up for a few days then will use another platform to shops sell. This is a rare piece and a very nicely made strong necklace thick silver around the crystal or white stone unsure of what the stone is but it's hard like a thick piece of glass. It's tagged w/ the dyerberg kern stamp. Hopefully I spelled that correctly . It's not magnetic . Pretty sure it's silver . I actually saw a video on this brand this is a sought after and expensive brand. Or designer. It also has a heart on his tagged logo. Used good condition. Very thick necklace and pendent. Designer costume jewelry. Good condition def needs a good polishing uncertain on metal but I'm pretty sure the stone is crystal.