Magus Gems

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Magus Gems Magus Gems is Justin K Prim and Victoria Raynaud.

We started in Bangkok in 2016 with gems and since then have expanded to jewelry, lapidary-related art and shirts, and lately books.

09/10/2026

Here’s a hint about what’s going to happen on Monday. Hint, hint, hint, happy early Halloween 💀👻🎃👻💀

20/09/2026

Here’s the highlights reel from my latest YouTube video. I’m in England in search of the 19th century mineral dealer John Mawe for a new book project that I’m working on. If you want to see the whole adventure with the story, check it out on YouTube.

14/09/2026

Come on a mini Lapidary adventure with us

12/09/2026

Production update for the third edition of The Secret Teachings of Gemcutting. If you haven’t ordered yours yet, you can get one at magusgems.com.

10/09/2026

Obligatory Trade Work is part of the job description.

Yesterday a dream came true when we got to visit the Taillerie de Royat. This is a huge Gemcutting workshop and sales of...
30/07/2026

Yesterday a dream came true when we got to visit the Taillerie de Royat. This is a huge Gemcutting workshop and sales office that was founded in 1899 and catered to the affluent visitors of the local thermal spa. The workshop cut its last stone in the early 1990s and completely closed in 2004. Many of the the old machines are still there, as we discovered yesterday.

I have been researching the Taillerie and collecting memorabilia for several years, so it was incredible to be able to freely walk around for two hours and open all the drawers and discover all the secrets that remain inside. There is so much!! Half of a floor was the gemcutting workshop; 4 large grinding wheels in the style of Idar Oberstein (pic5), a long 20 person faceting bench (pic4), tools for jewelry, engraving, and so much more.

I didn’t take many photos because I shot a lot of video for an upcoming YouTube film about the Minerals of Auvergne with a big section about the Taillerie. Stay tuned! Thanks so much to Alexandra Geologic Garden for getting access and for taking half of these photos and thanks to Léa De Voyage En Canap’ 🌞 for being our guide. Imagine three gemcutters running around like kids in a toy store!

Ps. The last photo is a giant pile of rough!

Today, Victoria and I had the pleasure of learning about where French sapphires come from with Alexandra Geologic Garden...
27/07/2026

Today, Victoria and I had the pleasure of learning about where French sapphires come from with Alexandra Geologic Garden from Geologic Gardens. French sapphires are quite rare and not many people have the right to mine them so it was cool to see where she mines and what her technique is. It reminded us of previous sapphire mines we’ve been to in Thailand and Montana. Thanks for the great adventure Alexandra!

27/06/2026

I cut my first stone the new .fr Jambpeg Pro and it came out … well you have to watch and see 😜

The 1935 J. Harry Howard faceting workshop corner in the Faceting Museum is now about finished! It’s so cool to have the...
10/04/2026

The 1935 J. Harry Howard faceting workshop corner in the Faceting Museum is now about finished! It’s so cool to have the full workshop of a pioneer American gemcutter on display!

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