CVD DIAMOND · MPCVD EQUIPMENT
From seed to rough,
growing every carbon layer with precision
ENTASK is vertically integrated: we design and build our own MPCVD reactors and grow our own CVD diamond rough — custom formats up to 35×35×12 mm in D-E colour, VVS-VS clarity, Type IIa — plus optical windows and single-crystal heat spreaders.
- 35×35×12
- max custom size (mm)
- D/E
- color grade
- VVS/VS
- clarity
FROM SEED TO ROUGH
The journey of
a diamond
From a single seed to a fully traceable rough — precision-controlled at every step of the MPCVD process.
The Seed
A high-grade diamond crystal substrate — intact form, low defects — the starting point of single-crystal growth.
The Plasma
A 10-15 kW microwave activates a CH4+H2 mix, dissociating reactive carbon atoms into a stable plasma ball.
Layer by Layer
Carbon deposits atom by atom on the seed at 800-1000°C, 0.1 atm, growing a single crystal at 5-50μm/h.
The Rough
Stable per-run output of standard rectangular forms — 20×15×9.5 to 24×18×10 mm, custom to 35×35×12 mm, D/E colour, VVS/VS clarity, Type IIa.
Certified
Cut and polished into stones, certifiable by IGI and other leading labs — fully traceable quality.
CORE CAPABILITIES
Core Capabilities
Stable mass-production built on in-house MPCVD systems and a fully in-house process chain.
Record output per run
Per-system capacity
Largest custom format
MPCVD systems on sale
PRODUCTS
Product Lines
Diamond rough, optical windows, thermal spreaders, and MPCVD systems — focused on raw-material production.
TECHNOLOGY
The MPCVD Growth Method
Microwave energy dissociates carbon-bearing gas into carbon atoms, depositing layer by layer onto a diamond seed to grow a single crystal.
- Growth temperature
- 800–1000 ℃
- Atmosphere
- 0.1 atm CH₄+H₂
- Growth rate
- 5–50 μm/h
- Microwave source
- 2450 MHz · 10/15 kW
MANUFACTURING
Manufacturing & Capacity
In-house E-MG010K microwave power source (10/15 kW) and intelligent control platforms, with MTBF over 10,000 hours.
856 ct per run, capacity keeps breaking records
In Jan 2026, diamond rough reached 856 ct per run — a record. Since Gen-2 production in 2024, per-run output has climbed steadily from 300 ct.
QUALITY
Quality & Certification
ISO 9001:2015 certified, with end-to-end quality control across 20+ critical process checkpoints.
ISO 9001:2015
Quality management system certified
IGI Grading Certificate
10.80ct D VVS2 · Type IIa
Process Monitoring
Remote centralised control platform monitoring growth parameters in real time
Ready to get a quote?
Send us your specifications and quantities — our technical and sales teams will provide rough, functional material, or equipment solutions.