A "gem" in the realm of cryptocurrencies is a token that is unknown yet has a lot of applications, possibilities, and strong fundamentals. But normally gems are also drastically underestimated on the market.
The idea that a particular token with little to no value would soon be very valuable is conveyed by the term "Gem." Because there are so many fantastic tokens in crypto that are waiting for exposure, only those that find and hold this token early will profit from the increased exposure and the rising market valuation. Realizing that Bitcoin was worth $1 in April 2011 and that Ethereum's initial token selling price was $0.31 in August 2014 is astounding. New investors are therefore keen to find the next jewel before it becomes famous.