Omega Platinum Tension-Set Mounting

Niessing is famous for their tension-set diamond engagement rings, designed by Walter Wittek in 1979. They are a marvel of technology, in which the diamond is held without prongs or bezels, but by the pressure of the mounting on either side of the diamond.

Here is the 'Omega' platinum tension setting, set with a CZ, for a 1-1.25 carat diamond.