The village was mentioned in an Ottoman
defter of 1530, under the name of
Ismirdesh, and was described as having 53 households. The bigger part of the population of Smerdesh in 19th and in the beginning of 20th century was
Bulgarian. There were 1780 inhabitants in 1900. The church of St. George was built in 1891. Many residents of Smardesh took part in the struggle of
IMORO. There was an illegal foundry and depot for
hand grenades in 1903. The village was burned by Turkish troops in May 1903. It was plundered and burned for the second time in 1903 during the
Ilinden–Preobrazhenie Uprising. Before its destruction, the inhabitants spoke the Dolna Koreshcha variant of the
Kostur dialect. Immigrants from Smardesi in
Toronto,
Canada participated in the early
Bulgarian community to build church infrastructure. In mid–1941 Krystallopigi along with Slavic Macedonian inhabitants from several villages partook in a celebration commemorating the Battle of Lokvata, fought by Bulgarian revolutionaries (
Komitadjis) against
Ottoman soldiers in 1903. During the
Greek Civil War (1946-1949) Krystallopigi was destroyed and later rebuilt between 1957–1958. The Greek government assisted a group of nomadic transhumant
Aromanians, known as the Arvanitovlachs to settle in Krystallopigi. Aromanians are the only inhabitants of the village. Krystallopigi had 265 inhabitants in 1981. ==Demographics==