Crafted from sterling silver this art deco inspired necklace features a black onyx gemstone decorated with metallic marcasite gemstones this elegant necklace design channels art deco inspirations through its sparkling embellishments and geometric linesonyx informationnumber of stones 1stone shape diamondstone size 8mm x 5mmcarat weight 1ctnaturalcreated natural onyxcountry of origin brazilmarcasite informationnumber of stones 8stone shape roundstone size 1 x 130mm 1 x 120mm