I've seen other Minecraft diamond ore lamps in various places by they all seem to lack the definitive pixelation that Minecraft embraces.
By leveraging techniques used from 3D printed lithographs and some of the features of the latest PrusaSlicer, I was able to give mine all the glorious 8-bit-ness it needs.
The lamp can be controlled via Siri (and its analogy on other platforms, I presume) via Homebridge.
Via the Home app on my iOS devices, I can easily control the color, brightness and on/off state at will with the familiar interface that I use with other devices.
Or, I can use the Siri commands:
"Hey Siri, turn the Diamond lamp on."
"Hey Siri, set the brightness of the Diamond lamp to 100%"
"Hey Siri, set the color of the Diamond lamp to [insert any color you like here!]" or
"Hey Siri, set the color of the Diamond lamp to Aqua" to get back to the desired Diamond Ore look.
Here's a video: https://youtu.be/6jC8ryEkgvQ
This is powered by a Raspberry Pi Zero and a Unicorn pHAT which offers an excellent about of lighting for this project and with a high level of flexibility.
I've even added a couple of bonus "colors" which are more like effect modes:
"Hey Siri, set the color of the Diamond lamp to Candlelight" will simulate a flickering candle inside the lamp.
"Hey Siri, set the color of the Diamond lamp to Ocean Boat Blue" will create a slowly undulating blue wave effect, and
"Hey Siri, set the color of the Diamond lamp to Razzmatazz" will create a cycling rainbow effect.
I've published the software I wrote to control the lamp and instructions for installing it here: https://github.com/mkoistinen/unicorn-homebridge-integration
This print measures 150mm on each edge.