Precious Metals

3 articles

A rough, uncut diamond on dark soil, symbolizing the origins of precious materials, with a blurred hand holding a magnifying glass in the background, representing scrutiny.

What is the Responsible Jewellery Council's role in ethical sourcing?

Despite the Responsible Jewellery Council (RJC) certifying over 1,000 companies for ethical sourcing of rare gemstones and precious metals, critics argue its board is industry-controlled, leading to a

Henry Caldwell·September 3, 2026

A close-up of the world's first mechanical watch featuring an 18K purple gold dial, showcasing its unique hue and intricate craftsmanship against a sophisticated, softly lit background.

Watches & Jewelry

Japanese Jewelry Maker Unveils First 18K Purple Gold Watch

Japanese jewelry maker Jewelry Miura Co., Ltd. has launched the world's first mechanical watch with an 18K purple gold dial on Kickstarter. This marks a significant development in applying unique precious metal alloys to luxury timepieces.

Henry Caldwell·April 8, 2026

Polished gold bars, platinum ingots, and palladium granules on a dark surface, showcasing distinct lusters of precious metals for fine jewelry and luxury watches.

Watches & Jewelry

A Connoisseur's Guide to Precious Metals: Understanding Gold Karats and Beyond

Understanding precious metals like gold, platinum, and palladium is crucial for acquiring fine jewelry and luxury watches. This guide explores their composition, characteristics, and nuances to help collectors make informed investments.

Henry Caldwell·April 5, 2026