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Shiredragon t1_iz1wlh1 wrote

Reply to comment by gachamyte in Scientists have analyzed the specific labor costs for producing a 1 carat diamond in mines and through artificial synthesis. The work of human turned out to be more effective: 26 minutes versus 2-3.5 hours. by Skoltech_

Cheaper for lab. While the cost to produce is up, the diamond monopoly artificially keeps prices for gem quality diamonds high (from their controlled natural sources). This means that there is currently a stigma associated with ‘fake’ lab grown diamonds. It is going away now, but is not gone. All these factors combine to mean that the consumer will pay less for a lab diamond than nature diamond of similar size.

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