T. Simon Jewelers is a proud member of the Jewelers of America (JA) and the Gemological Institute of America (GIA). They provide this valuable and educational information for buying fine jewelry, diamonds and gems. Feel free to view gemstone information on this page and to learn more about the quality products that T. Simon Jewelers brings to its customers.
Diamond & Colored Gemstone Information
information by Gemstone
View information by stone type or use the quick links at the bottom of the page: