Diamonds

Supposedly a girl's best friend, diamonds are also the most well-known gemstone.
The most loved gemstone. Diamonds are also the only mineral composed of a single element: carbon. Born near the centre of the earth, diamonds surface as a result of volcanic eruptions. The diamond is the hardest gemstone, which has inspired the saying "diamonds are forever". 
All diamonds in Pandora jewellery are natural occurring gemstones formed in nature without human intervention.

Read more about the diamonds used in Pandora jewellery here:

Diamonds