The Oath Journal
Fine Jewelry, Explained
Buying guides, gemstone deep dives, metal know-how, and styling advice from the Oath team. Everything you need to choose, wear, and care for fine jewelry with confidence.
4Articles
59Topics
Find your birthstone
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The Essential Guides
New to fine jewelry? These cornerstone guides cover the fundamentals worth knowing first.
Pillar Guide
Turquoise
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Gem Quality
How to Evaluate Turquoise Quality: Color, Matrix & What Separates Fine from Average
What makes a fine turquoise: an even, saturated sky blue, attractive matrix, a dense, well-finished texture, and honest disclosure of any treatment used.Read article → -
Gem Identification
Real vs Fake Turquoise: How to Tell the Difference
Genuine turquoise is a porous copper-aluminum phosphate, usually stabilized. Learn how matrix, hardness, and a dye test reveal real stones from dyed howlite.Read article → -
Birthstones
December Birthstone: Turquoise Meaning, Color & Jewelry
Turquoise is the birthstone for December, with tanzanite and zircon as alternates. Its meaning, colors, hardness, and how to care for turquoise jewelry.Read article → -
Buying Guides
How to Buy Turquoise Jewelry: Color, Matrix, Treatment & Choosing a Stone Worth Keeping
Read turquoise color and matrix first, then ask about treatment: most stones are stabilized, natural turquoise is rarer, and dyed howlite is the fake to avoid.Read article →
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