Ruby, spinel and cobalt blue spinel, chosen at the Sunday market we have traded at since 1990. Photos unedited. Treatments disclosed. Origin named down to the valley.
Low-iron marble makes rubies and spinels that fluoresce in daylight. A morning market run by women who have traded here for thirty years. And the world's only meaningful source of cobalt blue spinel — twenty minutes from our door.
Read the Luc Yen Origin GuidePhuong “Phoenix” Nguyen — second-generation trader. From the ruby-fever years to a five-kilogram cobalt spinel strike sold at the mine in 2020.
New stories from the market are coming soon.
New stones from the market, once a month. No noise — just what we found, what it costs, and the story of where it came from.
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