The product is a rare 1.50ct natural color change Diaspore loose gemstone with an olive green color. This gemstone has a good cut grade and is unheated, making it a natural and untreated piece. It exhibits color change properties and is of VS clarity grade. The gemstone is cushion-shaped and is from Turkey, with certification available upon request. This unique and natural gemstone is perfect for jewelry enthusiasts looking for a one-of-a-kind piece.