Check the listing for details. Engineered Labs Beryllium Element Cube. Condition: Used. Listed at 59.99 USD. The Engineered Labs Beryllium Element Cube is a unique collectible item that contains a small amount of beryllium, a rare and valuable element. This cube is a symbol of technological advancement and scientific curiosity, making it a sought-after piece for collectors and enthusiasts alike. With its sleek design and high-quality craftsmanship, this beryllium cube is sure to be a standout addition to any collection or display.