Editing Diamond anvil cell (section)

===Two opposing diamond anvils===
Made of high [[Gemstone|gem]] quality, flawless diamonds, usually with 16 [[facet]]s, they typically weigh {{frac|1|8}} to {{frac|1|3}}&nbsp;[[Carat (unit)|carat]] (25 to 70&nbsp;mg). The culet (tip) is ground and polished to a hexadecagonal surface parallel to the table. The culets of the two [[diamond]]s face one another, and must be perfectly [[parallel (geometry)|parallel]] in order to produce uniform [[pressure]] and to prevent dangerous [[Strain (materials science)|strains]]. Specially selected anvils are required for specific measurements – for example, low diamond absorption and luminescence is required in corresponding experiments.