Diamond Anvil Cell (IMAGE) Arizona State University Caption In a diamond-anvil cell, two gem quality single crystal diamonds are shaped into anvils (flat top in the photo) and then faced with each other. Samples are loaded between the culets (flat surfaces), then the sample is compressed between the anvils. Credit Dan Shim/ASU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.