Fracture filling is a clarity treatment that injects a glass-like filler into a crack to make it less visible.
In more detail
It is unstable, so GIA issues no grading report for a fracture-filled diamond, only an Identification Report. Take care with ultrasonic and steam cleaning for a filled stone.
On a grading report
No GIA grading report: an Identification Report instead. IGI also issues no full grading report for non-permanent treatments.
Related terms
- Feather: A feather is the general trade term for a break in a gemstone. It often looks white and feathery.
- Treatment: A treatment is any process, other than cutting and polishing, that changes a gem's color or apparent clarity. Anyone who sells a treated gem must disclose the treatment.
- Identification Report: An Identification Report states what a material is, without color or clarity grades. GIA issues one for simulants and for diamonds with unstable treatments, such as coating or fracture filling.
- Coating: Coating is a thin film, paint or ink on the surface of a gem that changes its color or look.