The coloured gemstone trade is on the cusp of transformation, shaped by rising demand for colour and individuality, sustained appetite for opulent gems and the emergence of new, affluent markets.彩色宝石行业正处于转型的关键时刻,其发展由三大趋势推动:市场对色彩与个性化需求不断上升、买家对奢华宝石的...