well considering they are all 10 ads each and now 20% off.. so 8 ads... and the ads are around 1m each. You could get away with vending them for 8m each.
However, I sell my ring[1] for 6m, Necklace[1] for 6.5m, Brooch [1] for 6.5m, BUT Roasry [1] (IMO) should always be sold at ad cost because of the crappy drop avalibility and can easliy vend for over priced.