Volyn also has similar symbols. Some symbols in the form of rhombus are quite old. I’ve similar symbols on archaeological finding of Cucuteni-Trypillian archaeological culture date to 5,000-7,000 years before present on the territory of present day south-western Ukraine.
For example the symbol on the stomach of this woman of Cucuteni-Trypillian culture is commonly found in Ukraine, Belarus, Russia, Baltic countries.
The symbol can found on Ukrainian Vyshyvanka. Bags made in Ukraine.