Superb 77.74ct top gem grade diamond white Quartz

Look at this amazing piece. Cut from pure AAA quartz, it exhibits a flawless diamond white hue that shines through pristine eye clean clarity. It was precision cut with fantastic symmetry resulting in crisp and vibrant flashing. Measuring 36.2mm x 25.7mm x 16mm, it has incredible size and a Mohs hardness rating of 7 out of 10. Source from Brazil. Untreated!!!