Block Shop Textiles BLOCK Crystal Large Geometric Vase 10" Heavy Clear Cut Glass w/ stamp etching

BLOCK Crystal Large Geometric Vase 10 Heavy Clear Cut Glass w/ stamp etching This is an extremely heavy beautiful crystal vase (measuring 8 lbs). Measures 10 inches tall and around 5 inches This is pre-owned and there are some signs of use like usage marks on the bottom of the vase. Noticed two areas where there is raised line on the crystal. It appears to be from manufacturing. Photos provided from multiple angle.