What is Transparency
Transparency, also called pellucidity, is the material property of allowing light to pass through.
In mineralogy, another term for this property is diaphaneity.
The DCLA in Australia developed the Transparency Grade is the degree to which a diamond transmits light, directly relevant to its ‘cloudiness’ or ‘haziness.’
In other words, it is a comprehensive assessment of light performance based on the quality of the diamond crystal itself.
What affects Transparency See: DCLA Transparency Grade