Journal
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Gemstones
A Guide to Birthstones
The modern birthstone for every month, where the list comes from, and how durable each stone is for everyday jewelry.
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Gemstones
Sapphire Jewelry Guide
Sapphire is corundum, second only to diamond in hardness and found in almost every colour. How to judge colour, origin, treatments and laboratory-grown sapphire.
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Gemstones
Natural vs Lab-Grown Gemstones
Natural, laboratory-grown, treated, imitation: the words that describe a gemstone's origin, and why each must be used precisely.
