Search
Search the whole magazine.
Full-text search across every article — headlines, decks, body copy, pull quotes, captions and FAQs — plus our editorial and legal policies.
7 results for “Hallmark” in Industry
Industry · 7 August 2026
How Fake Gold Is Detected
…and usually only discovered when the item is later sold and independently assayed. · Does hallmarking guarantee a piece of jewellery is genuine? It substantially improves the odds where an independent assay office applies the mark, because the maker's own claim is checked by a th…
Tomas Herrera · 16 min read
Industry · 6 August 2026
The Scrap Trade
…a piece before you accept a scrap quote, especially if it carries a maker's mark, an old hallmark, an unusual design or a stone of any size. Melt value is a floor, not a ceiling — auction houses, specialist dealers and vintage jewellers routinely pay well above scrap for pieces…
Ingrid Sørensen · 16 min read
Industry · 7 August 2026
After the Cyanide
Every ounce of mined gold leaves behind roughly a tonne of processed rock and the water that carried it. What happens to that material after the last shift is the part of the industry with the longest…
Tomas Herrera · 16 min read
Industry · 2 July 2026
Nine Nines: Inside a Modern Gold Refinery
A doré bar arrives at 85 per cent purity and leaves at 99.99. Between those two numbers sit chlorine gas, aqua regia, an electrolytic cell and a chain of custody that is now as valuable as the metal i…
Tomas Herrera · 19 min read
Industry · 4 August 2026
The Gold Inside Your Phone
Industrial demand is the quietest third of the gold market: a few tenths of a gram per handset, multiplied by billions of devices, chosen not for prestige but because nothing else conducts as reliably…
Tomas Herrera · 18 min read
Industry · 20 August 2026
The Refiner's Ledger
Somewhere between a mine's doré bar and a Good Delivery brick sits a chain of chlorination furnaces, electrolytic cells, assay labs and accreditation committees that decides which gold the world's mar…
Tomas Herrera · 17 min read
Industry · 28 July 2026
Urban Mining: The Richest Gold Ore on Earth Is in Your Old Phone
A tonne of good underground ore holds a few grams of gold. A tonne of discarded circuit boards can hold two hundred. So why is most of it still going into landfill? · Concentration, not tonnage, is wh…
Tomas Herrera · 16 min read
