Type IIa Purity
We select Type IIa diamonds, characterised by exceptionally low levels of measurable nitrogen impurities within their crystal structure. This represents one of the purest classifications of diamond material.
The Purest Diamond Standard
Type IIa CVD Diamonds
The Highest Standard Begins at the Source.
At Carbon, we choose CVD-grown diamonds for their exceptional material purity and controlled growth process.
CVD — Chemical Vapour Deposition — allows a diamond crystal to develop layer by layer from carbon, creating a diamond with the same fundamental crystal structure, chemical composition and optical properties as a natural diamond.
Our Choice of CVD
While both CVD and HPHT are established methods of creating lab-grown diamonds, Carbon has chosen CVD as our preferred growth technology for the consistency and control it offers during the diamond-growth process.
Diamond in Every Sense
CVD diamonds are real diamonds, possessing the same essential chemical, physical and optical properties as their natural counterparts.
Selected to the Carbon Standard
Technology creates the diamond. Our standards determine which diamonds become Carbon.
The purest diamond standard, born from pure carbon, Carbon Assurance
The Purest Diamond Standard
Pure by Material. Precise by Technology. Selected by Carbon.
Speak to a Carbon advisor
For certificates, hallmarks or the terms of your piece, our team will walk you through every detail.