New Delhi, 17 July (NNS): The prices of coriander Badami rose by Rs.300 to Rs.8400 per quintal because of the strong buying from the stockists even after the higher prices. There are about 7500/8000 bags of coriander reported to arrive in Ramganj Mandi and the prices held stable at the level of the previous day. The active contract went up by Rs 260 or 3.82 percent to Rs.7070 per quintal because of the all-round speculative buying. There is no fear of downtrend in the spot coriander prices during the coming days.