Project 1252 'Izumrud' (Изумруд - 'Emerald') (NATO reporting name: Zhenya class) were a group of three minesweepers built for the Soviet Navy in the late 1960s.

They were intended to be a prototype of an advanced design, instead the Soviet Navy returned to wooden-hulled minesweeper construction with the following Sonya class.

The vessels were powered by two diesel engines each turning a propeller shaft creating 1,800 kW (2,400 bhp).

The Zhenya class was equipped with "Spin Through" and "Don I" surface search radar and "Two Square Head" identification friend or foe.

[1][2] The design was accepted for construction in 1961 and three vessels were built by Izhora rated by the Soviet Navy as bazovy tralshchik (base minesweeper).