25ct Natural Alexandrite ring in a solid 18k White Gold filigree ring and almost 100 years old. Great piece and so nice... NICE green Blue color change on the Alexandrite... Metal: 18 KT White Gold. Powered by SixBit's eCommerce Solution.The item "Antique 1920s Natural Alexandrite 18k White Gold Filigree Ring MINTY" is in sale since Friday, July 6, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "oldtreasures333" and is located in American Fork, Utah. This item can be shipped worldwide.