Nice try. Manufacturing them also has non negligible costs. I'd only buy synthetics anyway. Not very keen on 18th century slavery, which is pretty close to what happens in diamond mines. In addition to that synthetics are more pure, so better quality if the cut and polishing is done right.
The above comment is correct. De Beers bought Lightbox to position synthetic diamonds as for “everyday jewelry” rather than special occasion jewelry such as engagement rings. So it essentially is to help protect diamond price levels and the allure or scarcity.
