New Delhi: Gold rose further by Rs 160 to Rs 22,430 per 10 grams, while silver added another Rs 450 to Rs 54,150 per kg on Thursday on increased buying by stockists and speculators, supported by firming global trend.

Silver coins followed suit and spurted by Rs 1,000 to Rs 60,000 for buying and Rs 61,000 for selling of 100 pieces.

Trading sentiments bolstered on rising trend overseas as deepening European sovereign debt concerns boosted the demand for the precious metals as an alternative investment.

Gold in global markets, which normally sets a price trend on the domestic front, rose by USD 1.35 to USD 1,530.25 an ounce. Silver gained 0.2 per cent to USD 35.95 an ounce.

On the domestic front, gold of 99.9 and 99.5 per cent purity rose further by Rs 160 each to Rs 22,430 and Rs 22,310 per 10 grams, respectively. It had gained Rs 275 on Wednesday. Sovereigns improved by Rs 50 to Rs 18,700 per piece of eight grams.

Similarly, silver-ready added another Rs 450 to Rs 54,150 per kg. The metal had gained Rs 2,400 on Wednesday. Silver weekly-based delivery moved up by Rs 350 to Rs 54,050 per kg.