The product is a 3.50ct top quality natural bi-color tourmaline loose gemstone with excellent cut grade and emerald shape. It is transparent and slightly included, with dimensions of 10.5mm length, 5mm depth, and 5.5mm width. This gemstone is from Afghanistan and is not enhanced, making it a valuable piece for jewelry and watch making. It is a wholesale item, making it available for bulk purchases for those in need of high-quality gemstones for their projects.