Daniel Oyama
@danieloyama
Gem cutter & lapidary artist. Faceting tutorials, rough selection, polish techniques, and exclusive stone reveal unboxings.
May 9, 2026
Idar-Oberstein, Germany
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Opal cutting and polishing. The fragile gem that requires special care.

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

Setting considerations. How the cut design affects mounting options.

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Photography for gemstones. Lighting that captures brilliance and color.

My gem collection tour. Rough and finished stones from around the world.

Cabochon cutting tutorial. Domed stones from start to polish.

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Commission piece finished. My client cried when they saw it. That's why I do this.

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

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

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Rough stone selection. Identifying potential in uncut material.

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About

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

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