This is a piece by Vever. That should be all about it. One of the grandest jewellers of all time and an extraordinary artist. He embraced the Art Nouveau aesthetics, competing with Lalique, but he did not renounce to the use of important gemstones. This is not just a collector's item, it's a small treasure.
It will be auctioned by Sotheby's in NY on April 14th.