Daniel Oyama
@danieloyama
Gem cutter & lapidary artist. Faceting tutorials, rough selection, polish techniques, and exclusive stone reveal unboxings.
September 11, 2026
Idar-Oberstein, Germany
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Polish grades. The final steps that make a stone sparkle.

The history of Idar-Oberstein. My city and its centuries of gem cutting.

Rough stone selection. Identifying potential in uncut material.

Subscriber exclusive: Monthly gem spotlight with market pricing and quality factors.

Gem identification basics. Refractive index, specific gravity, and visual clues.

Exclusive: Full stone cutting. Raw crystal to finished gem in detailed timelapse.

Studio reorganization complete. A clean workspace really does change your creative output.

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Gem show buying tips. Navigating Tucson, Munich, and Bangkok.

The creative block was real this month. Here's what got me through it.

Cabochon cutting tutorial. Domed stones from start to polish.

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Gem cutter & lapidary artist. Faceting tutorials, rough selection, polish techniques, and exclusive stone reveal unboxings.

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