Will it clean earrings? I'm thinking the butterfly fastenings and the area where the stone sits. They look really dull and grubby. I don't think I could get a polishing cloth into a small area that these.
I always put my sterling silver in a tin foil lined tub, put in some bicarb/baking soda and fill with hot water. You have to wait a while and top up the solution every so often but it always cleans my silver up a treat.
I tried OneLittleLady's method recently and it works brilliantly, especially for fiddly stuff. I always have foil and bicarbonate of soda in the house anyway, so no need to go out and buy more chemicals.