BOMA JEWELRY | Ethically-Made Fine 925 Sterling Silver Jewelry – Boma Jewelry, Ethically-made Sterling Silver Jewelry. Since 1981 Boma has sold over 35 million pieces of fine sterling silver jewelry to date and counting. Today Boma Jewelry continues to be a Seattle-based and family-owned company. Boma’s vision is to be an industry leader for ethical and sustainable jewelry making.