In high-production "smashing" entertainment (popularized by hydraulic press channels and luxury destruction artists), the gems are often lab-grown, quartz, or industrial-grade crystals that look expensive but cost very little. They are "props of opulence."
For the viewer, this is a power fantasy. You cannot afford the jewel, but you can watch someone else destroy it. It democratizes destruction. It says: We are not slaves to the gem; we are masters of the hammer. Video Title- SMASHING THICK ASS GEM JEWELS - XV...
The "smash" isn't just visual. High-quality microphones capture the sharp "crack" and the cascading "tinkle" of the jewels. This auditory feedback can trigger Autonomous Sensory Meridian Response (ASMR), leading to a tingling, relaxing sensation for the viewer. the gems are often lab-grown