The All India Gem & Jewellery Domestic Council (GJC) has requested the Union Finance Minister to reduce GST on gems and jewellery from 3% to 1% and introduce a concessional rate for lab-grown diamonds ...
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China ...