Gemstone treatment
Assembled Stones, Doublets and Triplets
Layer boundaries, glue lines, gas bubbles in cement, color layer sandwiched between colorless components, or different luster between crown and pavilion.
01
What to look for
Layer boundaries, glue lines, gas bubbles in cement, color layer sandwiched between colorless components, or different luster between crown and pavilion.
02
What it means
Assembled stones combine separate materials to imitate a single gem or enhance appearance. They must be disclosed.
03
Expert move
Examine the girdle and side view. Most assembled stones reveal their layers from the side.