Abstract: A method of issuing blockchain-based digital certificates associated with a gemstone comprising receiving from a user a plurality of gemstone records, each record of the plurality of gemstone records comprising a characteristic indicator associated with a gemstone, receiving from the user meta-information related to the plurality of gemstone records, applying a hashing function to each record of the plurality of gemstone records, generating a plurality of fingerprints, generating a hash tree from the plurality of fingerprints, the hash tree comprising a root hash, recording to a digital certificate gemstone smart contract deployed at a digital certificate gemstone smart contract address on a first blockchain network the root hash and the received meta-information, and signing the digital certificate gemstone smart contract with an issuer signature.

Abstract: A blockchain-based rough gemstone planning method including receiving a gemstone record including gemstone scan information and a smart contract, receiving a plurality of virtual derivative gemstones that may be derived from a gemstone associated with the received gemstone record and a plurality of virtual derivative gemstone records comprising meta-information about the virtual derivative gemstones, recording the plurality of virtual derivative gemstone records to a meta-information database, generating a plurality of derivative smart contracts associated with the plurality of virtual derivative gemstone records, sending the virtual derivative gemstone records and the derivative smart contracts, receiving price information for the plurality of virtual derivative gemstone records, and identifying a subset of the plurality of virtual derivative gemstone records that may be derived from the gemstone associated with received gemstone record responsive to the received price information received.