One of the most significant disadvantages of blockchain technology is that it consumes a lot of energy and costs a lot of money. Because it uses the Proof-of-Work consensus algorithm, which delegates the complicated work to the miners, it consumes a lot of energy. Miners are awarded after completing challenging arithmetic problems. These complex mathematical problems are unsuited for real-world applications due to their high energy consumption. Furthermore, the basic expenses of blockchain technology need substantial financial investment from any organization or corporation interested in pursuing it (Iredale, 2020). In terms of a company utilizing blockchain technology in their supply chain, De Beers. They use blockchain technology to keep track of a gem's every move. The new industry-wide blockchain intends to track diamonds and other gems from the moment they are mined to when they are made and sold (Reiff, 2018). Though from 2018, this tech set to launch in 2019 and is in full use now three years later.