Describes the 4Cs of diamonds (cut, clarity, carat and color) and some information about certification.

Multi-page article that offers engagement ring buying advice.

Facts about opal include chemical make-up, buying advice, cutting and polishing basics, and opal care. Includes photos of different types of opals.

Features tips on buying diamonds and jewelry, gemstone facts and cleaning silver.

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.