Silver and rock crystal necklace from Gotland, ca. Unknown. Lovely craftsmanship like this was usually a product of trade between the Scandinavians and the Franks (if I remember correctly, I'm a tad rusty).
My "viking strings of pearls", before re-doing. Please go look at pinterest.com/elin1758 - this lady has more fantastic info and pictures regarding Norse jewelry, for those interested in playing this part like me!