The width is 4 cm at the thickest point The size is 21.69 mm UK Y 1/2 US 12 1/4 Electroformed Jewelry is created using chemistry and electricity, This Electroformed copper Ruby in kyanite ring is one of a kind and unique in all ways, you will recieve the Electroformed copper Ruby in kyanite ring from the picture. Let your own heart decide what this copper Ruby in kyanite ring can give you, or even better what you can bring each other. For it is an exchange. Just open you heart and imagine how it will be. We are all born on this planet with a task, we have the opportunity to give something to this planet and make it grow. As an exchange mother Earth gives us what we need to complete our task, which makes us grown.