As a Capricorn, I need to be constantly evolving and changing.  Therefore most of the items I have created are not repeated, as repetition for me is like torture.  I am lucky to get 20 beads for a necklace at the same time.  I have to make five, make something else or different color, and then go back.  I can never make 100 of the same thing.  The materials I use come and go, always changing, however I find the magic of the jewellery I create to be in the materials used.  I use .925 Sterling Silver in all of my designs.  Occasionally I use copper and gold, but indicate any variation in the design description of the item.