Cylinder red Coral Necklace

46cm length Red Coral Necklace of 46cm composed of Branches of red Coral cut in cylinders.
The variety more the appraisal of the Coral is the noble red Coral (Corallium rubrum). Hardness on the MOHS scale of hardness: 3-4. Density: 2,60-2.70. Its color, uniform from one end to another, goes from the tender pink (Coral says "skin of angel") to the red blood of ox, sometimes mottled of white or pink. Source: GULF OF BISCAY, CANARY ISLANDS, ARCHIPELAGO OF MALAYSIA, JAPAN.