Indian polished diamond exports dropped by 35.7 percent on the year in December to US$950 million, according to provisional figures from the Gem and Jewellery Export Promotion Council (GJEPC).
In the April-December period, Indian polished diamond exports plunged 35.7 percent to US$11.5 billion.
Meanwhile, rough imports jumped 34.8 percent to US$1.76 billion last month, and decreased by 0.6 percent to US$11.13 billion in April-December.
Exports of rough diamonds fell 38.6 percent to US$79.3 million in December, and for the April-December period declined by 19.3 percent to US$1.04 billion.
Imports of polished diamonds plunged 49.1 percent to US$581.2 million last month. In the April-December period, polished imports plummeted 72.0 percent to US$3.38 billion.