Archaeological heritage left behind by Baltic tribes on rich tribal burial grounds of the 7th – 14th centuries on the territory of Lithuania and Latvia gives evidence of an unprecedented flourishing of arts and crafts. Complicated period jewels are much more sumptuous than analogue production of Central-European jewellers in the period of Great Moravia and at the beginning of the Premyslid state. Particular jewel types reflect sensitively the ethnic affiliation of their owners and they became an important symbol of self-identification of particular Baltic tribes (Curonians, Semigallians, Samaiten, Selonians, Latgalians, etc.). Depicted fibulas and pins were used to fasten clothes and were part of female clothing.