Gagat is a kind of fossilized coal and is also known as Jet(t) or black amber. The special feature of this stone is its very light weight, almost unbelievably light. The stones are ground into spheres with a diameter of 12mm and individually strung on the line. The necklace has no clasp.The strand is approximately 40cm long. (The photos may have light color variations. In stone inclusions are a sign of nature).