When looking at examination gloves, you will notice they are manufactured from three primary materials, Vinyl, Latex, and Nitrile. Each one of these has varying properties for different applications. The price variation seen between these, are due to the raw material costs, and manufacturing process.
Nearly all examination gloves produced today are powder-free. Powdered gloves are generally cheaper than their powder-free equivalents because additional steps are required in the manufacturing process to make the glove powder-free.