Cristal D'Arques Paris was established in 1968 by the company that today is known as Arc International. They pioneered the mechanized production of crystal stemware. As lead crystal fell out of favor they created Kwarx. Kwarx is exceptionally transparent and brilliant. It remains just as brilliant and transparent after 300 dishwasher cycles as it is when new. Kwarx has superior strength and is exceptionally resistance to shocks that causes chips and cracks. Cristal D'Arques products are primarily made in France.