Natural Alexandrite Art Deco Solid Gold (White Gold) Ring From the 1920's Beautiful detailing with a natural alexandrite center stone. I'm unsure of the size of the ring but I think it's around a 6. Alexandrite is an extremely rare stone that changes color depending on the lighting. This particular stone has great color change from green to purple. This is one of the most amazing color changes I have seen on a natural Alexandrite in-person nestled into an extremely intricate filigree setting carved out of solid 18k white gold. A true Disney Princess ring. Please see first few photos and the video for the exhibit of this color change. An Art Deco masterpiece. June birthday birthstone!!!!!!