Lab Grown Diamonds
At Carolyn Codd Jewellery it has always been our ethos to provide our clients with what they want rather than what we feel they 'should' have and therefore we are more than happy to offer fine quality lab grown diamonds alongside our fine quality natural mined diamonds.
Lab grown diamonds have the exact same chemical properties of natural mined diamonds. It is purely how the diamond is grown that differs. The environmental and ethical impact of lab grown diamonds are under debate and we advise further research on the subject.
The manufacturing process of lab grown diamonds
Lab grown diamonds are created in two ways: there's the High Pressure High Temperature method (HTHP) and Chemical Vapour Deposition (CVD) method.
Our suppliers grow diamonds from diamonds using primarily the CVD method. Diamond slivers called plates are placed into a large, purified vacuum chamber which is carefully injected with a hydrocarbon gas. Then high power microwave energy is applied to break down the atomic bonds of the hydrocarbon gas. This process separates the carbon atoms from the hydrogen atoms, resulting in free carbon ‘raining’ down on the diamond plates, vertically growing the diamond atom by atom; similar to the way snow collects on a table. By maintaining pure conditions, our lab grown diamond manufacturers' process produces diamond crystal of consistent purity.
The finest quality guaranteed
The engineers and scientists at our manufacturers have truly refined their Chemical Vapour Deposition (CVD) process to eliminate the gases and elements that result in colours and defects. The process simply re-creates the conditions in nature that result in carbon crystallising into diamond. This also means their lab created diamonds look totally natural with predictable variations in colour and clarity. Not all lab grown diamonds are colourless and flawless. The rough stone that is produced is then cut in the same way our fine natural diamonds are and certified using the same laboratory bodies namely either GIA or IGI.
Our experienced and qualified staff are GIA and HRD certified and will be able to advise you on stone choice and what to look out for in a stone.
To enquire more about our lab grown diamonds please do get in touch. We look forward to hearing from you.