Leading diamond security specialist, Opsydia, has unveiled new classifications for its sub-surface identifiers, allowing diamond manufacturers, brands and grading houses to choose from a range of visibilities to suit their specific requirements. Utilising the laser...
![Opsydia unveils customisable Nano ID and Loupe ID features for diamond trades](https://opsydia.com/wp-content/uploads/2021/03/Opsydia-alphanumeric-identifier-less-than-50-μm-across-and-not-visible-at-40x-magnification.-e1615994654272.jpg)