| Antique Jewelry Online | | Jewelry history features take readers through the popular styles during specific eras. Also includes gemstone lore and articles about materials used to make jewelry. |
| Ask Mr. Jewelry | | Photos and buying advice for diamonds and other gemstones. Includes traditional birthstone and anniversary lists and articles to help consumers make gemstone selections. |
| Better Business Bureau (BBB) | | Provides a description of traditional jewelry metals, diamonds, and pearls, and includes advice to help consumers make decisions when buying and repairing jewelry. |
| Buy a Diamond | | Diamond buying advice. Includes facts about the origins of diamonds and how the stones progress from rough to cut. |
| CanadaDiamonds.com | | Diamond basics, covering the 5 C's--carat weight, color, clarity, cut and cost. |
| Colored Gemstones | | The International Colored Gemstone Association (ICA) provides consumer buying advice and educational details about colored gemstones. |
| Costellos Australian Jewelers | | Jewelry store that offers educational articles to give consumers the facts about the products they sell. Library of articles about diamonds, pearls, and opals. |
| DiaInfo.com | | Information to help make shoppers aware of simulated stones and of diamonds that might have received undisclosed treatments to improve their appearance. |
| Diamond Info.org | | Buying tips and educational guidance for diamonds and diamond engagement rings. Includes a community forum. |
| Diamond Review | | Diamond buying guide includes a price database, diamonds tutorial, and diamond FAQ. |
| Enchanted Learning | | An illustrated glossary, including terms that describe fine and costume jewelry, gemstones, and jewelry making. |
| Gem Gallery - The Image.com | | Photos of gemstones, each accompanied by a description of the gem's properties and where it is commonly found. Includes instructions for close-up gem photography. |
| Gemological Institute of America (GIA) | | A nonprofit organization that offers gemstone identification and buying advice to consumers and training to those in the jewelry trade. The GIA provides lab services to the jewelry industry. |
| Guide2jewelry | | Buying tips and facts about diamonds, colored gemstones, pearls, and jewelry. |
| Idazzle.com | | Provides basic information to help familiarize buyers with the qualities they should look for when searching for a diamond. |
| JadeMart.com | | An explanation of the different grades of jade used in jewelry, with tips to help buyers distinguish between them. |
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