An art deco style necklace crafted from sterling silver featuring an oval shaped faceted blue topaz gemstone decorated with glimmering marcasite gemstonesblue topaz informationnumber of stones 1stone shape ovalstone size 4mm x 3mmcarat weight 019ctnaturalcreated natural blue topazcountry of origin brazilmarcasite informationnumber of stones 3stone shape roundstone size 120mmcarat weight 003ctnaturalcreated natural marcasitecountry of origin austria