Paint the base code a robin egg blue or Tiffany's blue
Use a dotter create several large grey dots.
Using the smaller end of a dotter. Create white dots within the grey dots.
Use a toothpick and draw small line to attach each circle to create a "link".
Find a charm you want to replicate and try to simplify it using grey, silver and white.
Using the silver to create a metal effect. This can be done with your Dotter or nail art brush.
Add other details and embellishments.*optional*