The brooch-pendant is made of ocean shell (ракушка океаническая), set in 585 gold. Weight: 10.9 g. Size: 4.8*3.5 cm. Other cameos are also available (pendants, earrings, rings), and custom settings can be made for them in gold and silver (samples available).
The brooch-pendant can be exchanged for gold and silver jewelry, or gold and silver scrap (лом), at a price significantly above market (as of now).