A silver ring set with a step-cut rock quartz crystal by Wiwen Nilsson Lund 1939
Mounting measures 14.9x10.1x6.8 mm, stamped "AN" and "Wiwen Nilsson", ring size 16.75/52.5, weight approx. 6.0 grams
Rock quartz crystal with visible edge chip under 10x loupe. Scratches.