Solid brass with Lapis Lazuli and 18 carat rose gold plating Diameter   8mm  Turned on a traditional lathe, then finely polished by hand, these studs are set with ultramarine blue Lapis Lazuli. Used throughout history since the ancient Mesopotamian era to embellish sculptures, jewellery and fine clothing. The beautiful colour of these shirt studs is an eye catching accent to any dress shirt.