Sky Diamonds use a process of chemical vapour deposition to create carbon negative diamonds ‘grown from the sky’. The process:
…involves placing a ‘diamond seed’ within a sealed chamber, or ‘diamond mill’, which is heated to 800C and filled with carbon-rich methane gas. The carbon elements gradually bond with the ‘seed’ to create a diamond anatomically identical to a stone that has taken billions of years to grow underground.
Incredible.
