The rings you are referring to are signet rings,not wedding rings;I've noticed that Charles and Andrew(their weddings to Diana and Sarah)did not receive wedding bands,but chose to have their signet rings blessed,instead.The women of the Royal family ...
I don't know about a place that's actually for promise rings but try looking at Tiffany & Co. Their rings are soooooooooooooooo pretty there...I have like 5 diamond rings from there...as just because rings. then i have another one from my boyfriend. ...
Cool, The Only Problem Is Circles Dont Have Corners!