Gold prices rose Rs 122 to Rs51,989 per 10 grams in the national capital on Tuesday supported by rupee depreciation, according to HDFC Securities. In the previous trade, gold closed at Rs51,867 per 10 grams.Silver also gained Rs 340 to Rs69,665 per kg, from Rs69,325 per kg in the previous trade. “Spot gold prices for 24 karat in Delhi were up by Rs 122, supported by rupee depreciation,” HDFC Securities Senior Analyst (Commodities) Tapan Patel said. The rupee depreciated 25 paise and settled at 73.63 (provisional) against a US dollar on Tuesday.