Gold on Friday jumped Rs 109 to Rs 38,894 per 10 gram in the national capital amid a weaker rupee, according to HDFC Securities. The yellow metal had closed at Rs 38,785 per 10 gram on Thursday. HDFC Securities Senior Analyst (Commodities) Tapan Patel said spot gold for 24 karat in Delhi gained Rs 109, supported by a weaker rupee.