[1][2] The Topaz is a development of the Ekolot JK-05L Junior and was designed to comply with the Fédération Aéronautique Internationale microlight rules.

It features a cantilever high wing in place of the Junior's strut-braced wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in tractor configuration.

The standard engine available is the 80 hp (60 kW) Rotax 912UL four-stroke powerplant.

[1][2][3] The use of a one-piece wing without struts gives the Topaz a 20 km/h (12.4 mph) higher cruise speed than the Junior, while resulting in the same empty weight.

[1][2] The Topaz has been accepted by the US Federal Aviation Administration as a light-sport aircraft.