Endiamonds does not claim lab diamonds do not have environmental impact.
Mining diamonds causes extreme destruction to the environment due to land excavation, waste polution, soil erosion, deforestation, and ecosystem destruction. This is what a diamond mine looks like.
The laboratories where lab diamonds are produced emit carbon just like any other factory. For us, lab diamonds are environment-conscious because they have less environmental impact compared to mined diamonds. We still need more research to see how much carbon emissions lab diamonds produce but it is clear that they are the better choice since we do not need to mine diamonds.