Anybody know where to start with making a crystal material similar to this?
https://www.glowlighting.com/product/square-chandelier-crystal-drop-chandelier-cityscape-598m/ <<<REFERENCE
Performance wise, you’d probably want to use a billboard material that always faces the camera for each rope of crystals.
You can use the glass material from the automotive material pack as a starting point for getting a convincing look to the material.