Green tourmaline is commonly known for having a strong dichroism. This one is also have dichroism in a gorgeous way. The color of this green tourmaline is medium tone not too dark. I'm wondering this tourmaline is "chrome" tourmaline that really contains chromium content.
This green tourmaline & diamond ring listed at $6,800 in 1stdibs.com
The ring was designed by Emma Quist Jewelry.
http://jewelry.1stdibs.com/jewelry_item_detail.php?id=52709