Silver ready hardened by Rs 350 to Rs 40,850 per kg, while weekly-based delivery by Rs 60 to Rs 40,050 per kg. Silver coins, too, found buying support and spurted by Rs 2,000 to Rs 77,000 for buying and Rs 78,000 for selling of 100 pieces. Gold of 99.9 and 99.5 purity, however, remained flat at Rs 27,500 and Rs 27,300 per 10 grams, respectively. It had lost Rs 820 in the past four days. In Singapore, gold fell by 0.17 per cent to USD 1,253.80 an ounce. Sovereign prices also remained flat at Rs 24,600 apiece of eight grams.