This listing is for a facet grade Benitoite! This piece will cut an Eye Clean - Flawless Gem! The rough should yield a stone in the .285ct - .40ct range depending on the shape that you cut the stone into. Either way, the finished stone will be worth roughly $425-$800. As clean round Benitoite’s are fetching as high as $2,000/ct. This piece is nicely proportioned measuring roughly 7 x 5.5 x 4mm!! It’s very rare to get an opportunity to cut benitoite so if you are a gemstone cutter don’t let this stone go. If you have any questions please let me know.