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Jet & Organic Black Gem Materials

Jet & Organic Black Gem Materials is a lapidary material valued for decorative and jewelry applications. It is relevant to jewelry, cabochon, faceting, carving and lapidary work. For HANS, the machining focus is cutting, shaping, grinding and polishing, with tooling selected around the material’s hardness, brittleness, geometry and required surface condition.
Machining Challenges
The material can be relatively soft, porous, heat-sensitive or prone to edge bruising; aggressive pressure can cause scratches, chipping or local overheating.
Recommended Diamond Tool Solutions
Use thin diamond saws and fine resin/flexible diamond abrasives with light pressure and progressive grit steps. Keep cutting cool and use gentle final polishing appropriate to the specific gem.
Related Applications

Gemstone & Lapidary
Gemstone Flat Lapping & Polishing
HANS diamond flat lap discs and polishing abrasives for gemstone flat lapping and polishing

Gemstone & Lapidary
Gemstone Preforming & Shaping
Diamond preforming and shaping solutions for converting gemstone slabs and rough blanks into controlled profiles ready for cabochon making, faceting, carving and jewelry production.

Gemstone & Lapidary
Cabochon Grinding & Polishing
Complete diamond grinding, sanding and polishing solutions for shaping gemstone preforms into smooth, accurately contoured and highly polished cabochons.
Related Products
Need a Diamond Tool Solution for This Material?
Tell us your material, dimensions, machining process, surface finish, tolerance, and production requirements. HANS will recommend a suitable diamond tooling solution for your application.
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