Highest demand is for stones with the following features:

yellow golden orange colour;

stones with low specific weight;

large stones;

bili rubin content not less than 35%;

There is a demand for dark stones as well, but prices are considerably lower however.

Stones are traded in the following specifications:

100% whole stones

90% whole stones / 10% broken

80% whole stones / 20% broken

70% whole stones / 30% broken

60% whole stones / 40% broken

100% broken stones

100% ox gall powder