Wealthtech startup Jar has entered the ecommerce space with its D2C jewellery brand Nek, aiming to diversify its product mix.Nek focuses on gold jewellery and leverages Jar's existing customer base that has invested in digital gold.Jar expects to exceed INR 100 Cr in annual recurring revenue (ARR) by October.Jar's core digital gold vertical will remain the primary growth driver, contributing over 50% to the overall topline.