Love the combination of the Green Chalcedony Doublet and the White Topaz in Gold. So rich looking and perfect for fall colors. I had to look it up. A Doublet is composed of two parts.
Usually the "Crown" (top of the stone) is a natural Gemstone material while the bottom is composed of Quartz or Glass. Doublets are most often used with Opals because it is fragile. I think it looks like it has more depth and shine.
Check out the photos and you will see what I mean. The item "Judith Ripka 14k Gold Plated Silver 4.39 ct Green Chalcedony & White Topaz Ring" is in sale since Tuesday, October 16, 2018. This item is in the category "Jewelry & Watches\Fashion Jewelry\Rings". The seller is "ronowoods" and is located in Salinas, California. This item can be shipped to United States.