Sears.com has a good deal for Rhodium Plated 1/2cttw Diamond Necklace, Earring and Ring Set is just $26.76.
http://www.sears.com/rhodium-plated-1-2cttw-diamond-necklace-earring-and-ring/p-3ZZVA52648112P?prdNo=3&blockNo=3&blockType=G3