I found a brilliant application developed by IBM with (Gemological Institute of America), developed a system based on Artificial Intelligence, to determine the purity of certain elements such as diamond also helps identify the element in question, "the best friend of the diamond" , this application makes an optical scan of the elements, according to the presentation of the solution, helps determine the quality of the diamonds, purity and other interesting data about this precious item in the world.

• A fusion of optical analytics and AI

"The objects and substances that we buy, wear, eat or use every day all have their own unique optical patterns, sometimes undetectable by the human eye, that differentiate them from each other. These patterns can distinguish an organic ear of corn from a genetically modified one, or identify impurities in diamonds, for example."
IBM source, official explanation.

• Anchoring to blockchain

" This innovative technology is a natural partner to blockchain technology, an immutable digital ledger that records transactions in a public or private peer-to-peer network. Interest in using blockchain to track physical goods is growing rapidly. IBM’s Crypto Anchor Verifier solution can be used to capture the optical signature from an original, uncompromised item and subsequently record it on the blockchain, which can verify throughout the supply chain that the item hasn’t been tampered with. As an example, IBM Crypto Anchor Verifier can be used via the blockchain to track a crate of wine from the time a vintner starts the distribution process to the moment a collector buys it, to confirm it’s the same wine that left the vineyard."
IBM source, official explanation.

• More Info

• https://www.gia.edu/gems-gemology/spring-2018-microworld-type-iia-diamond-with-extraordinary-etch-channels

• https://www.ibm.com/blogs/research/2018/05/ai-authentication-verifier/