Aqua Nomination Jewelry
This is part of the semi-precious topaz gemstone collection called 4 Elements by Nomination. Coming out of Italy, of course, you can expect some beautiful craftsmanship.
I found this and loads of other pieces for Nomination at an Ebay store of all things, called Just Originals. I guess shoppers can buy cars on Ebay, why not high-end as well? Of course, the site is Italian, and even though I used the translation option in Google, I still really could understand what it said, but you don't have to read to appreciate this jewelry.