This is a pack of 11 beautiful pieces (9-13.5 carats) ~2.5 mm each of Lime Green Peridot facet rough purchased at the Tucson show in 1980. The owner stopped faceting a few years ago and asked us to help him sell some of his facet rough. These 11 pieces of Peridot that looks like they should facet well. I've not done any faceting so these pieces (like all of our material on the site) comes with a total money back guarantee. If you want this rough, buy it and if you are not totally satisfied (before you cut it) send it back to me and i'll refund your purchase price and shipping costs.