PERIDOT

Ancient Egyptians considered Peridot the ‘gem of the sun’, sent to Earth by the explosion of a star. Fittingly, they’re often formed in lava at the Earth’s mantle, and then propelled near enough to the surface of the Earth for it to be mined. This is precisely why gem-quality Peridot in large sizes is rare; in their journey to the surface of the earth, most are susceptible to weathering and lose their sparkle and clarity. 

Peridot rates 6.5 to 7 on the Mohs hardness scale which makes it durable enough for jewellery wear but should be worn with some care so as not to scratch it or subject it to hard blows that can fracture it.