Opsydia unveils customisable Nano ID and Loupe ID features for laboratory-grown and natural diamond trades The UK-based diamond security innovator has moved to classify its world-leading sub-surface identifiers by visibility, resulting in ‘Nano’ and ‘Loupe’ ID features for the trade By: Diamond World News Service | | Reference: 25603 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 technology within the Opsydia System, users can choose from Nano ID features or Loupe ID features to create a permanent physical link between a specific stone and its grading report, blockchain record or branded jewellery origins.