A stunning art deco ring crafted from sterling silver featuring a central square shaped black onyx cabochon gemstone surrounded by sparkling marcasite gemstonesblack onyx informationnumber of stones 1stone shape squarestone size 550mm x 550mmcarat weight 058ctnaturalcreated natural black onyxcountry of origin brazilmarcasite informationnumber of stones 12stone shape roundstone size 4 x 120mm 8 x 090mmcarat weight 011ctnaturalcreated natural marcasitecountry of origi