Diamonds are a very pure form of carbon, the building block of our world. Most commonly gem quality diamonds are clear, or "white" and can split light into the spectrum creating colourful and white sparkling know as scintillation. 

Birthstone for April and a Hardness of 10

8.62ct TDW Seaweed pair of salt and pepper diamonds - Rectangular   These are just lovely and will be used as a pair. They were probably created together about 3 billion years ago and we certainly dont want to be the one who separates them...