The width is 1.1 cm at the thickest point 17.45 mm UK O 1/2 US 7 1/4 I buy my Moldavite directly from The Czech Republic, this wholeseller buy's direct from local miners which makes it a very relyable source. Let your own heart decide what this Electroformed Copper Moldavite 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. Electroformed Jewelry is created using chemistry and electricity, This Electroformed copper ring is one of a kind and unique in all ways, you will recieve the Electroformed copper ring from the picture.