This is the most fascinating ring I have ever seen. It is a fabulous modernist design and as you can see from the photos it fits on one finger but extends over the next finger. It is a show stopper...a real runway piece of jewelry. There are no markings on this ring so I am assuming that it is artisan made. Ring tests for sterling silver and weighs just under 40 grams. It is a size 7 and a little over 2 1/2" across.