Diamond Powder - Synthetic
Overview
Synthetic Diamond Powder
What This Product Is
Synthetic diamond powder is loose, dry monocrystalline synthetic diamond, graded by micron size and supplied by the carat. Each particle is a single synthetic diamond crystal with sharp edges that cut aggressively and predictably. As a dry abrasive it lets a lab charge polishing cloths and laps, mix its own suspensions or pastes to a chosen concentration and carrier, or lap directly — with more control and better bulk economy than a ready-made product.
Intended Use in Metallography
Used across intermediate and fine polishing (and coarser lapping with larger micron sizes), it is commonly selected when:
- A lab wants to control diamond concentration and carrier itself
- Charging cloths, laps, or making custom suspensions and pastes
- Bulk purchasing by the carat is more economical than pre-made product
- A general-purpose, sharp-cutting diamond is wanted
Typical Applications
Commonly used for:
- General metals and alloys
- Steels and ferrous materials
- Charging polishing cloths and laps
- Lapping with coarser micron grades
Beyond metallography, synthetic diamond powder is also used in:
- Petrography and geological sample polishing
- Ceramics and advanced or composite materials
- Optics and glass finishing
- Tool, die, and mold finishing and general precision lapping
When This Product Is NOT Ideal
- When a ready-to-use suspension, paste, or spray is more convenient
- For hard, mixed-phase materials better served by polycrystalline diamond
- When handling and mixing loose powder is impractical
Where This Fits in the Preparation Process
- After grinding, as a polishing abrasive charged to a cloth or lap
- Coarser grades can serve lapping operations earlier in the workflow
Specifications
| Abrasive type | Monocrystalline synthetic diamond |
| Form | Dry loose powder (charge, mix, or lap) |
| Options | Multiple micron sizes; sold by carats per bottle — see product options |
| Application | Metallographic polishing and lapping |
| Micron Size | 1/10 micron, 1/8 micron, 1/4 micron, 1/2 micron, 1 micron, 3 micron, 6 micron, 9 micron, 15 micron, 30 micron, 45 micron, 70 micron |
| Carats Per Bottle | 25, 50, 75, 100 |
| Custom sizing | Custom sizes and concentrations are made to spec if what you need is not listed |
| Compatibility | Buehler, Struers, LECO, Allied, and PACE — and all other major brands. |
Compatibility and Equivalents
Metallographic diamond powder for the same polishing steps served by the diamond powders from Buehler, Struers, and Allied High Tech. Compatible with all major systems (Buehler, Struers, LECO, Allied, PACE). It is a comparable product for the same step — not a branded or drop-in item.
Same grading and micron sizing, typically 20 to 40 percent lower in price.
Request a free sample and test it on your own bench.
Named brand products are referenced only to identify the comparable item and prep step. We do not claim our product is identical to, or a replacement for, any trademarked product, and no affiliation or endorsement is implied.
Frequently Asked Questions
Powder, paste, suspension, or spray — what's the difference?
Same diamond, different delivery. Powder is dry, so you charge cloths or mix your own suspension/paste and control concentration and carrier. Paste and suspension are pre-mixed; spray applies a suspension in metered bursts. Powder gives the most control and the best bulk economy.
Synthetic (monocrystalline) or polycrystalline powder?
Synthetic monocrystalline is single-crystal diamond that cuts sharply and predictably — a strong general-purpose choice. Polycrystalline is multi-crystal with a self-sharpening action, often preferred for hard or mixed-phase materials.
How do I use loose diamond powder?
Charge it onto a polishing cloth or lap with a compatible lubricant, or disperse it in a carrier to make a suspension or paste at the concentration your step needs. Keep one micron size per cloth.
Can synthetic diamond powder be used outside metallography?
Yes. Loose diamond powder polishes and laps any hard material, so it is used across petrography, ceramics and advanced materials, optics and glass, and tool and die finishing — not only metallography. Its dry form lets each field mix the concentration and carrier it needs.