These rings are by Dansk Smykkekunst. I have a silver and a rose gold that go on my ring fingers, a black that goes on my middle fingers, and a yellow gold that goes on an index finger. I like to wear them all together but they also look good worn individually.
Dansk Smykkekunst jewellery is not expensive but is of very good quality. They tend to make all their jewellery in rose gold, yellow gold, white gold and black. Not real gold of course but copper with a plated overlay. I tend to buy their rings for less than €10 each on sale. I like the simplicity of Scandinavia design and have written about Scandinavian jewellery here.
