The Archive
Essential Guides
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Ruby vs Emerald vs Sapphire: Prices, Durability and How to Buy
Two are corundum, one is beryl: how the Big Three compare on hardness, treatments and price per carat, from about…
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Buying a Pre-Owned Luxury Watch: What a Watchmaker Checks Before You Pay
Before you spend thousands on a pre-owned watch, ask the seller for three things. A watchmaker explains what they are,…
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Diamond 4Cs Chart: Cut, Color, Clarity and Carat Explained (2026 Guide)
Four letters, one grading language: how to read a diamond report and where your money is best spent.