JewelInfo4U
- Informational site with articles by volunteer editors from the jewelry industry. Includes articles on gemstones, buying guides, help for men, and common questions.
- http://www.jewelinfo4u.com/

Name on Rice Jewelry Online Buying Guide
- Read reviews, ratings, and comparisons of numerous online "Name on Rice" jewelry web sites in the online buyer's guide.
- http://www.nameonricejewelry.com

LoveAndDiamonds.com
- Diamond engagement rings buying guide includes a diamonds tutorial as well as related articles and resources.
- http://www.loveanddiamonds.com/

Diamond Information and Education
- Learn and discuss about diamonds and diamond jewelry through education tutorials,articles, chat, forums and informative FAQ's
- http://www.diamondchatforum.com

American Gem Trade Association
- The natural colored gemstone and cultured pearl source of information and ideas.
- http://agta.org

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.
- http://www.bbb.org/alerts/article.asp?ID=441

RingDesigner.com
- Describes the 4Cs of diamonds (cut, clarity, carat and color) and some information about certification.
- http://www.ringdesigner.com/Pages/Understanding_Diamonds.htm

Promise Rings
- Learn their meanings, history, traditions, current practices and where to buy them.
- http://www.promise-rings.info/

The Jewelry Box Newsletter
- Features tips on buying diamonds and jewelry, gemstone facts and cleaning silver.
- http://www.jewelrynewsletter.com

Emporia State University - Everything about Diamonds
- A tutorial about the history and characteristics of diamond. Includes facts about diamond mining.
- http://www.emporia.edu/earthsci/amber/go340/diamond.htm

PriceScope
- Includes numerous diamond tutorials and buying tips, a discussion forum, and a cut advisor.
- http://www.pricescope.com/tutor_cert.asp

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.
- http://www.antiquejewelryonline.com/learn/learn.htm

Soyouwanna Buy an Engagement Ring
- Multi-page article that offers engagement ring buying advice.
- http://www.soyouwanna.com/site/syws/ring/ring.html

JadeMart.com
- An explanation of the different grades of jade used in jewelry, with tips to help buyers distinguish between them.
- http://www.jademart.com

Jewelry Buying Advice
- Provides information to help consumers evaluate and purchase gemstones, jewelry, watches and related accessories. From About.com.
- http://jewelry.about.com

CanadaDiamonds.com
- Diamond basics, covering the 5 C's--carat weight, color, clarity, cut and cost.
- http://www.canadadiamonds.com/diamond_tutorials.htm

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.
- http://www.theimage.com/gemstone/gemstone.html

Enchanted Learning
- An illustrated glossary, including terms that describe fine and costume jewelry, gemstones, and jewelry making.
- http://www.enchantedlearning.com/jewel/

Colored Gemstones
- The International Colored Gemstone Association (ICA) provides consumer buying advice and educational details about colored gemstones.
- http://www.gemstone.org/index_gemsite.html

Idazzle.com
- Provides basic information to help familiarize buyers with the qualities they should look for when searching for a diamond.
- http://www.idazzle.com/

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.
- http://www.gia.edu

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.
- http://www.costellos.com.au

Diamond Info.org
- Buying tips and educational guidance for diamonds and diamond engagement rings. Includes a community forum.
- http://www.diamondinfo.org

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.
- http://www.askmrjewelry.com

Buy a Diamond
- Diamond buying advice. Includes facts about the origins of diamonds and how the stones progress from rough to cut.
- http://www.buyadiamond.net/

YourGemologist.com
- A reference library covering natural gemstones and minerals, synthetic and treated gems. Also offers resources for people who would like to pursue a career in gemology.
- http://www.yourgemologist.com/

DiaInfo.com
- Information to help make shoppers aware of simulated stones and of diamonds that might have received undisclosed treatments to improve their appearance.
- http://www.diainfo.com/

How Stuff Works: Moissanite Jewels
- Five-part, illustrated guide that discusses the origin of natural Moissanite and explains how it is being created in the lab today.
- http://www.howstuffworks.com/moissanite.htm

Diamond Review
- Diamond buying guide includes a price database, diamonds tutorial, and diamond FAQ.
- http://www.diamondreview.com/

The House of Tibara
- Facts about opal include chemical make-up, buying advice, cutting and polishing basics, and opal care. Includes photos of different types of opals.
- http://www.opal-tibara.com/