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About lab-grown diamonds

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Lab-grown, synthetic, or man-made diamonds, whichever name you prefer – we are proud representatives! Although the first lab-grown diamonds were manufactured as early as 1989, they have only recently hit the headlines worldwide. Lab-grown diamonds received a lot of attention when Hollywood actor Leonardo DiCaprio made a significant investment in a lab-grown diamond startup called Diamond Foundry. 

Lab-grown diamonds and natural diamonds have the same structure and chemical properties, and it is impossible to tell them apart with the naked eye. Even a gemologist or jeweller cannot tell the difference just by looking at them through a magnifying glass, as an ultraviolet light is needed to distinguish them.

At Macor Jewellery, we avoid using the word synthetic to describe laboratory diamonds, as it can be misleading and perceived by many to mean the same as fake or imitation. Lab-grown diamonds are just as genuine or real as mined diamonds.


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As the name suggests, lab-grown diamonds are grown in a laboratory from small seeds of carbon. There are currently two methods of growing them:

The HP-HT (high pressure–high temperature) method mimics the growth of a natural diamond when subject to enormous pressure and heat.

The CVC (chemical vapour deposition) method uses heat and gases to form the diamonds.

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Lab-grown diamonds are currently the most environmentally friendly diamond option and are often called ethical diamonds.

The environmental impact of laboratory diamond production is significantly lower than that of mined diamonds and the environmental pollution and damage they cause.  

Renewable energy can be used to manufacture laboratory diamonds, and their manufacture is not linked to the serious human rights issues and conflicts that exist in diamond mining. International classification certificates are available for laboratory diamonds. You can read more about them on our blog.

Brilliant cut lab-grown diamond made by CVD method


Lab-grown diamonds are an excellent choice not only for you, but also for the planet. As well as being a greener option, they are also conflict-free and less expensive.


Lab-created diamonds have no links to the conflicts that continue to take place in the mines of both developing and developed countries. Conflicts can include unsafe working conditions, the use of child labour, and political conflict.

Less expensive

Due to their production method and shorter supply chain, lab-grown diamonds are significantly less expensive than natural diamonds. Also, a few large mining companies have maintained the high price level of natural diamonds, which has historically contributed to the price difference.

More environmentally friendly

Because lab-grown diamonds are manufactured above ground, in a controlled environment, the pollution and waste associated with mining can be avoided.