El País: The company that tracks the history of every diamond

The Tracemark start-up, which identifies the hands through which the jewellery has passed, is intended as an investment support.

The luxury industry, and especially the diamond industry, has a hard time escaping suspicion. The brilliance of diamonds, the cut of the stones, their weight, their color, or their origin cannot be manufactured on an assembly line, and this defines their unique and exclusive character. Their value depends on all these issues, but lately also on something that is not found in the stone: its history. Information about the origin, who excavated it, and how many hands and workshops it has passed through before it reaches the shop is increasingly important. Some are convinced that it adds value that underpins it as an investment.

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