what happen if nobody buy my gems? I posted some slots to sell gem on the market and not yet sold . how do i must now?
To sell your Gems, click on the Gems tab. Enter the number of Gems you wish to sell and the price you wish to sell them for. You can only sell as many Gems as you have. The Gems per Coin (GpC) Conversion Rate History shows recent Gem prices. You can also choose the "Recommended Price," but be sure to do your homework and make your own decisions.
Unsold listings will expire in 36 hours and those Gems returned to your inventory.
https://cointiply.freshdesk.com/support/solutions/articles/36000074778-cointiply-mining-game-quick-start-guide