22 min
Reading a gemological certificate
GIA, SSEF, Gübelin, and GRS: what the report actually tells you about origin, treatment, and value.
Academy
Learn the market.
Short, precise courses written by the Aurea desk and independent gemologists. Free for every client.
Foundations
34 min
The four investment-grade species
Sapphire, ruby, emerald, and Paraíba tourmaline — and why the rest usually don't clear the bar.
Intermediate
40 min
Origin premiums and how they move
Kashmir, Mogok, Muzo, Paraíba: what drives the premium and how supply shocks reprice it.
45 min
Building a colored-stone portfolio
Position sizing, species diversification, and liquidity-tier balancing for a $250k–$5m allocation.
Advanced
38 min
Auction mechanics for private sellers
Reserve setting, buyer's premium, and choosing between Christie's, Sotheby's, and private treaty.