Here is the first attempt at my business card from the company I bought from. There were slight revisions after this set. This is the front and the back of the card. The price for 5000 cards was incredibly low for the quality and you can purchase as few as 500 cards in one order. They are great quality and wonderful to work with. Shiny surface and crisp pictures. You can find them here http://www.gemgraphics.net/ Monica Kaufman is the contact. Tell them Magpie Gemstones sent you.
I believe having an image of a piece of jewelry on your card will make a big difference in follow through with sales. Jewelry is such an emotional purchase and a strong beautiful photo will get people more interested than graphics.