Crownkyn
Diamond
Engineering Precision in Every Particle
World-leading synthetic diamond & CBN powder manufacturer. 50M+ carats monthly capacity serving 30+ countries in ultra-precision machining.

Product Categories
Explore our comprehensive range of synthetic diamond and CBN materials, engineered for precision and verified for industrial excellence.

Monocrystalline Diamond Powder
High-strength single crystal diamond for precision machining and ultra-fine grinding applications

Micron Diamond Powder
Ultra-fine diamond particles for polishing, lapping and surface finishing with exceptional consistency

Nano Diamond Powder
Nano-scale diamond particles for advanced coatings, composite materials and biotechnology applications

Thermal Conductive Diamond
Specialized diamond materials for thermal management in electronics and high-power applications

Monocrystalline CBN Powder
Cubic boron nitride powder for high-temperature grinding and precision machining of hardened steels

Diamond Slurry and Paste
Ready-to-use diamond suspensions and compounds for precision polishing and surface preparation
Unmatched Manufacturing Excellence
World-class facilities, cutting-edge technology, and rigorous quality control ensure every particle meets the highest standards.

State-of-the-Art Facility
ISO-certified manufacturing with advanced automation

World-Class Testing & Quality Control
Every particle is tested with precision instruments to ensure consistent quality and performance across all applications.
SEM Analysis
Scanning electron microscope for particle morphology and crystal structure analysis
Laser Sizing
Precision particle size distribution measurement with ±0.1μm accuracy
Impact Testing
Strength and durability testing for demanding industrial applications
Purity Analysis
Magnetic susceptibility and impurity content verification
Quality Assurance Process





Customer Success Stories
See how our superhard materials have transformed precision manufacturing for industry leaders worldwide.
Ceramic Processing
Advanced Ceramic Manufacturing
"Crownkyn’s ultra-fine diamond powder allows us to achieve extremely low surface roughness on advanced ceramic components, which is critical for precision grinding and polishing applications."
Semiconductor Industry
Wafer Processing
"The ultra-fine diamond powder from Crownkyn enables us to achieve sub-nanometer surface roughness on silicon wafers. Critical for our 5nm process node."
Ferrous Metals
Automotive Components
"Switching to Crownkyn's CBN powder reduced our grinding time by 35% while improving component tolerances. Excellent technical support throughout."
Get Your
Technical Consultation
Our precision materials experts will analyze your specific application requirements and recommend the optimal superhard material solution.
Application Analysis
Detailed review of your requirements and performance goals
Sample Testing
Complimentary material samples for performance validation
Technical Documentation
Complete specifications and application guidelines