Kolkata: Purchase of digital gold rose 83% from a year earlier to Rs 2,590 crore in September, as investors turned to small-ticket investments in the yellow metal despite elevated prices.According to the World Gold Council (WGC), September purchases rose 4% from August while volumes touched 1.7 tonnes, 18% above the long-term monthly average. In January-September, digital gold purchases climbed 76% to 16.3 tonnes from 9.2 tonnes in the corresponding period last year, reflecting growing appetite for accessible gold investments.