
Gemmology · February 2025
Burma, Mozambique and the Origin of a Pigeon Blood
A field essay tracing the provenance of the world's most prized rubies, and the language of laboratories that determines their value.
12 min read
The Journal
A quarterly collection of essays, field notes and conversations from our specialists.

Watches · March 2025 · 8 min read
Why the secondary market for vintage Calatrava and Nautilus references has decoupled from retail — and what it signals for the collector.
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Gemmology · February 2025
A field essay tracing the provenance of the world's most prized rubies, and the language of laboratories that determines their value.
12 min read

Craftsmanship · February 2025
Three hundred hours of hand-finishing for a single brooch. We spend a week at the bench of a master Parisian jeweller.
6 min read

Investment · January 2025
Why allocated, refinery-certified gold remains a foundation of the modern UHNW portfolio in an era of monetary uncertainty.
10 min read

Jewellery · December 2024
On choosing a setting, a cut and a stone that will outlast trends, fashions and decades.
7 min read

Gemmology · November 2024
Once overlooked beside ruby and sapphire, the lotus-coloured stone has become the most coveted variety of corundum on the market.
9 min read