Prices, auctions, supply — the numbers behind the stones.
The Stone Market · RarityA vanishingly small share of the diamonds ever pulled from the earth belong to a chemical class so…
The Stone Market · ProvenanceCut, colour, clarity, carat — the four Cs describe a stone the day it is graded. There is…
The Stone Market · Auction WatchThe November salerooms will set the year's public numbers. Here is how to read them like the trade…
The Stone Market · The TradeA term abused everywhere in this trade, defined precisely once — so you can hear when it is…
The Stone Market · AnalysisThe great source of pink diamonds closed in 2020. Supply ended; desire did not. The arithmetic of impossible…
The Stone MarketWhile the world watched auction records, America's serious buyers moved down a quieter corridor — the five-to-ten-carat stone,…
One letter a week — the stones, the stories, the numbers that matter. Discretion is the house rule.