This is a token that represents the value of a diamond, anyone can trade this asset but in this case tokenized on the Ethereum network under the ERC-20 standard.
In theory Cedex should interconnect the sellers of these diamonds using the exchange ecosystem.
-Any user can market on this service.
-Each diamond must be qualified to set its value.
In general, you should stay away from this token since there is no new information, the developers are not public, it is still listed on an exchange but its real value is zero since it has no support, at least on its official website they are not shown data on how each of the emitions will be certified and the physical of each asset.