Shop › Silver Malachite & Marcasite Ring Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Silver Malachite & Marcasite Ring $120.00 Genuine vintage 925 sterling silver ring with inlaid set malachite and marcasites. Stamped 925, 4.45g, size L. Add To Cart Added! Genuine vintage 925 sterling silver ring with inlaid set malachite and marcasites. Stamped 925, 4.45g, size L.