Precious Metals Articles
Articles on precious metals and trade considerations. Read dated market commentary in its original context.
Gemstone Hardness and Toughness: Choosing Jewellery for Everyday Wear
Why a Mohs hardness number is only one part of gemstone durability, and what to ask before choosing frequently worn jewellery.
Polished, Satin and Hammered Jewellery: Understanding Surface Finishes
A practical guide to jewellery surface texture, mixed finishes and the difference between cleaning and professional refinishing.
Work Hardening and Annealing: How Gold Jewellery Changes During Making
Gold jewellery changes mechanically as it is formed and heated. Explore the roles of work hardening, annealing and alloy choice in skilled manufacture.
Proof, Bullion and Uncirculated Coins: Understanding the Finish
Proof, bullion and uncirculated describe different aspects of a coin. Separate the striking standard from metal content, condition and presentation.
Ultrasonic Jewellery Cleaners: What to Check Before Use
A cleaner labelled “for jewellery” is not suitable for every piece. Gemstone identity, treatment history and the condition of the complete setting determine the safer approach.
Copper, Brass and Bronze Jewellery: Materials, Disclosure and Care
A bronze trade name may describe a brass alloy, while a warm-coloured finish may hide a different base metal. Clear material disclosure helps buyers choose and care for jewellery.
Bullion Weighing Scales: Readability, Accuracy and Calibration
Extra decimal places do not guarantee a trustworthy bullion weight. Learn how readability, calibration, working conditions and uncertainty affect a scale’s results.
Pearl Jewellery with Gold or Silver Fittings: A Care Guide
Pearls, thread and precious-metal fittings have different care needs. This guide explains how to handle the complete piece without treating it like plain metal.
Gold Chain Clasps: Types and Practical Wear Checks
Understand how common gold-chain clasps work and check the complete fastening assembly before putting on a necklace or bracelet.
Gemstone Setting Checks: Prongs, Bezels and Channels
A practical visual-check guide to gemstone settings, including changed prongs, distorted bezel rims and uneven channel-set stones.