A stunning art deco ring crafted from sterling silver featuring a central octagon shaped black onyx cabochon gemstone surrounded by sparkling marcasite gemstonesblack onyx informationnumber of stones 1stone shape octagonstone size 600mm x 400mmcarat weight 058ctnaturalcreated natural black onyxcountry of origin brazilmarcasite informationnumber of stones 8stone shape roundstone size 2 x 110mm 6 x 100mmcarat weight 007ctnaturalcreated natural marcasitecountry of orig