Gemstone treatment
Resin Filling, Emerald
Filled fractures can show strong flash effects, trapped bubbles, or filler residue at the surface. Some resins fluoresce under UV.
01
What to look for
Filled fractures can show strong flash effects, trapped bubbles, or filler residue at the surface. Some resins fluoresce under UV.
02
What it means
Resin filling is a clarity enhancement similar in purpose to oil but often more stable. It must be disclosed and graded by extent.
03
Expert move
Use UV as a supporting test only. Not all fillers fluoresce, and some natural features can also react.