This is a visually impressive ballbuster of a dioptase plate, of good size too! It has numerous crystals to 1.3 cm in trade and dozens smaller. All are peched on the best matrix of contrasting, sparkly white calcite. There is some damage here and there, though mostly to the back periphery and back of a few crystals on that part of the specimen...nevertheless it displays very well adn the damage is not apparent at first glance. If not damaged evern just that small bit, this would easily be a 10k-plus specimen. Still, its worth $4000-5000 easily, I would think. It is cheap, bluntly, because I am blowing it out to help cash out on the trade I made with Jack. I paid $4500 in trade for it.