Vivianite Value, Price, and Jewelry Information ...
Mar 10, 2022 · Stone Sizes. Gem cutters rarely facet vivianites, and their almost micaceous cleavage makes polishing gems very difficult. For example, the Bolivian material could yield cut stones up to 75100 carats. However, this just doesn't occur. Care. Due to its fragility, this gem material would make an improbable jewelry stone.