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%
date_rangeMay 23' 2017 / China
date_rangeMay 20' 2016 / China
date_rangeNov 26' 2015 / Japan
date_rangeJun 03' 2012 / India