In the opening scene of Sonic the Hedgehog. Sonic is seen with Tails flying to Emerald Green Zone. While Sonic is roaming around he runs into Knuckles the Echinda and he drops all of his Chaos Emeralds. Only to have them stolen by Knuckles.
Dropping gems or jewels practically means to put out quality work thats beautiful. I used Sonic as a metaphor because Sonic dropped numerous gems during the opening scene.
100