Haim Cohen is owner of the company NISGAV, established in Rotterdam, The Netherlands, since 1989, designer, inventor and wholesaler of optical items, jewelry, telecom and computers related items and services.

Nisgav is involved in several international activities, as with CHROMAGEN, which is worldwide patent, with special lenses for Dyslexia and Color Defficiency.

For our jewels designs using Crystal Quartz beads and more stones see: (soon to come online store with all details).

To see Crystal Chart of all stones used in our beads, their powers, chakra relation, astral relation, tribes they represent, see our Crystal Chart Page !

Nisgav can also take care for your sourcing, if you need to produce or import any specific product and you can't find it, we can assist you with it.

For all the activities and the links go to: our ACTIVITIES page !

If you have inetersting idea or you want to invest or cooperate please contact us by E-Mail info@nisgav.com

For more about Haim Cohen and the company Nisgav see: www.nisgav.com