certification

 

All MVG jewelry is produced in Portugal using sterling silver, gold-plated sterling silver, zirconia stones, pearls and gemstones like peridot, tourmaline, aquamarine, citrine, quartz and topaz.

All pieces are certified by the INCM Contrastalia in Lisbon. This ensures and verifies the legal touch mandatory. 

https://www.incm.pt/portal/uco_atividade.jsp