Wiwen Nilsson,
Rock crystal measures approx. 10x10 mm, the height of the setting is about 8.9 mm, the width of the ring is approx. 10 mm, ring size is about 17/53.38, weight is approx. 7.8 grams, in original box.
The silver with marks. The rock crystal with very small nicks in the corners visible under a microscope.