CIBJO Calls for Synthetics Treatment Disclosure

RAPAPORT... The World Jewellery Confederation (CIBJO) has specified theneed to disclose treatments to both natural and lab-grown diamonds.

Sellers must make the disclosure clearly, both at the time of sale and before, the organization noted in guidelines it released last week. The same instructions apply to natural and synthetic colored gemstones, CIBJO said.

The guidelines apply to ...