When it comes to achieving a truly razor-sharp edge on your knives, razors, or tools, stropping is the final and most critical step. While bare leather can refine an edge to a degree, adding a diamond stropping compound dramatically enhances cutting performance and edge retention. But with so many options on the market, how do you choose the best one?
In this guide, we’ll break down Best Diamond Stropping Compounds, compare some top products, and help you find the perfect match for your sharpening setup.
Why Diamond?
Diamond compounds are prized for one simple reason: they cut fast and polish cleanly. Unlike traditional compounds made from chromium oxide or aluminum oxide, diamond abrasives can sharpen even the hardest steels, including modern super steels like M390, S90V, and Maxamet.
Because diamond particles don’t round off easily, they maintain their cutting ability over time—especially when applied to a good strop surface like Nanocloth, leather, or balsa wood.
Top Diamond Stropping Compounds
1. Jende Poly Diamond Emulsion
- Particle Sizes: 0.1 to 4 microns
- Base: Water
- Best for: Professional-level results and controlled edge refinement
- Highlights:
- Uses polycrystalline diamond for consistent, even abrasion
- Water-based and easy to clean
- Pairs well with nanocloth or kangaroo leather strops
- Why It’s Great: Jende’s emulsions are among the most trusted in the sharpening community. The poly diamond particles break down into smaller, equally sharp facets, which results in an exceptionally fine and aggressive polish without damaging the steel.
2. Gunny Juice Diamond Emulsion
- Particle Sizes: 0.1 to 6 microns
- Base: Alcohol
- Best for: Fast drying, high-performance stropping
- Highlights:
- Alcohol-based for quick setting on the strop
- Smooth application with minimal mess
- Produces a mirror finish with very few passes
3. DMT Dia-Paste
- Particle Sizes: 1, 3, and 6 microns
- Base: Oil
- Best for: Traditional stropping on leather or felt
- Highlights:
- Thick paste consistency—less messy
- Long-lasting and great for tool edges
- Why It’s Great: DMT is known for diamond sharpening gear, and their paste holds up well. Great for use on strops where you want long compound life and don’t mind slower drying time.
What Micron Size Should You Choose?
- 4 to 6 micron: For aggressive stropping and edge repair
- 1 to 3 micron: Great for everyday touch-ups and refining an edge
- 0.25 to 1 micron: For ultra-fine polishing and final stropping steps
- 0.1 micron and below: Mirror finishing and straight razors
Tips for Using Diamond Compounds
- Less is more – A light, even coat is all you need.
- Use the right surface – Nanocloth, balsa, and smooth leathers are ideal.
- Edge-trailing strokes only – Always strop away from the edge to avoid cutting the strop.
- Keep it clean – Avoid mixing different grit sizes on the same strop.
Final Thoughts
The best diamond stropping compound for you depends on your needs: If you want premium results with minimal effort, Jende Poly Diamond Emulsion is hard to beat. For a classic feel and long-lasting compound, DMT Dia-Paste delivers.
No matter your choice, upgrading to a quality diamond stropping compound is one of the easiest ways to take your sharpening results from good to outstanding.
Hello. I’m looking for .5 and 5 micron diamond for deburring. Will apply to dense paper wheel. (Razor sharp paper wheels)
Do you have this? Are tariffs affecting this product to Canada?
Thanks
Rick