CdI2 is a layered semiconductor with indirect gap at 3.0 eV for bulk and its properties in the monolayer form is currently unknown. It crystallizes in generally known as CdI2 crystal structure as shown in the product images. The repeating I-Cd-I trilayer stack couples to each other via weak Van der Waals forces. CdI2 crystal is around 6-7mm in size and can easily be exfoliated down to monolayer using conventional exfoliation techniques. Material has been developed last 3 years to achieve impressive purity (99.9995%). Stoichiometry (perfect 1:2 ratio), defect density (less than one point defect for every 75,000 atoms), and single domain size (~90 microns) allowing to exfoliate large monolayers.