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Guides
Reference material on the materials and decisions behind a piece of jewelry, written to be read before you buy, not after.
Diamond education
The 4Cs, certification, fluorescence and proportions, plus an honest comparison of natural and laboratory grown diamonds.
Read the guideGemstone guide
Sapphire, emerald, ruby and other colored stones: hardness, common treatments, origin and how care differs from diamonds.
Read the guideMetal guide
Gold karats, platinum, palladium and sterling silver compared for durability, color, weight and upkeep, including rhodium plating.
Read the guideRing sizing
How to measure at home, why the result is only approximate, and which settings can and cannot be resized later.
Read the guideJewelry care
Daily wear, cleaning by metal and stone, storage, and how often to have a piece professionally inspected.
Read the guide