You can check out above graph to see how the market cap of Gems has changed over time. The market cap value depends on the value of Gems on that particular day and number of Gems in supply at that day.

How is Gems Market Cap calculated?

The Gems Market cap is calculated using a simple formula. You can find it below:

Gems Market Capitalization in USD = Number of GEM in supply X Price of one Gems in USD

Since the price of Gems is highly volatile you can see the market cap going up and down a lot. Sometimes price and market cap are not linear to each other due to increase in the supply of coins in the market and stable or decrease in the price of the coin. So you can say that it's not simple to predict the market cap of Gems or predict the price of Gems.