What is the production method for these diamonds?

They are produced using Chemical Vapor Deposition (CVD) or High Pressure High Temperature (HPHT) methods.

What is the lead time for orders?

The average lead time is within 15 workdays for both peak and off-season periods.

CVD Diamond Rough Lab Grown 5CT 6CT 7CT 8CT 9CT

Name: CVD Diamond Rough Lab Grown 5CT 6CT 7CT 8CT 9CT
Brand: Chenguang Machinery & Electric Equipment Co., Ltd.
SKU: 1950926505

Hunan, ChinaChenguang Machinery & Electric Equipment Co., Ltd.

US$200.00-500.00

1 Piece

Product profile

Customization

Available

Color

White

Hardness

Model NO.

cvd

Process Type

CVD

Material

Diamond

Usage

Gem

Transport Package

Plastic Bottle

Specification

3-8ct

Trademark

chenguang

Origin

Hunan, China

HS Code

71049019

Production Capacity

5000 PCS/Month

Key features

CVD Growth Technology: Grown from hydrocarbon gas mixture with fine control over chemical impurities and properties.

High Hardness and Strength: Mohs hardness 10, high strength, and can pass diamond test pen verification.

Customizable Shapes and Sizes: Available in round, square, cube, and customized shapes based on given designs.

Versatile Industrial Applications: Used for cutting tools, wheel dressers, optical windows, and quantum optics.

High Thermal Stability: Excellent thermal stability and high impact resistance for demanding environments.

Multiple Surface Finishes: Options include As Grown, Laser Cut Polished (Ra< 5nm), and Lapped surfaces.

High Transparency: Good diaphaneity with low impurity content, available in white or yellow colors.

Wide Size Range: Available in sizes from 3-10CT for rough diamonds and various plate dimensions.

Company profile

Chenguang Machinery & Electric Equipment Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Changsha. Guangzhou, Shanghai, ShenzhenAverage Response Time: ≤15hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryChenguang Machinery & Electric Equipment Co., Ltd. is a China-based limited trading company located in Changsha, Hunan, with its factory reported in Furong District. Its stated business covers development, production, and marketing of ultra-hard materials, including synthetic diamond, diamond drill bits, diamond cutting discs, and PDC cutters. The supplier reports ISO 9001 and GMP certifications, more than 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. It has self-operated import/export rights and has exported since 2010, with exports representing 31%–40% of total sales. Recent trade records show transactions involving synthetic diamonds and inserts with a buyer in Mexico, but the limited number of disclosed transactions does not establish a broad customer base. Evidence is insufficient to assess after-sales service, customization, and financial credibility.

Supplier typeThe supplier is identified as a trading company in Changsha and as both a trading company and manufacturer/factory in the company profile. Its stated business includes development, production, and marketing of ultra-hard materials, indicating a hybrid trading-and-manufacturing profile.

CertificationsThe supplier reports holding ISO 9001 and GMP management-system certifications. These certifications provide explicit evidence of formal quality and manufacturing management systems, although the slices do not provide certificate numbers, validity dates, or scope.

R&D capabilityThe company describes itself as specialized in the development of ultra-hard materials and reports 6–10 R&D engineers. Its product keywords include synthetic diamond and PDC cutters, supporting an identifiable R&D orientation, but no patents, new-product records, or technical performance data are provided.

Production capacityThe supplier states that it develops and produces ultra-hard materials, operates more than 10 production lines, and has annual output information listing 10,000,000 units for lab diamond and other products. The reported manufacturing infrastructure and output data explicitly support production capability, although the exact product allocation and capacity verification are not provided.

Client casesTrade records show three recent product categories—Inserts, Synthetic Diamond, and Synthetic Diamonds—with transactions involving Mexico and the same named buyer; the disclosed transaction counts are 2, 3, and 2 respectively. These records evidence some recent commercial activity, but the limited buyer and country coverage does not establish a broad or diversified customer portfolio.

Product Q&A

Q:What is the hardness of the CVD diamond?

The hardness is Mohs 10, which is the same as natural diamond, and it can pass the diamond test pen.

Q:What are the available colors for the rough diamonds?

The diamonds are available in white or yellow colors with good transparency.

Q:Can the shape and size of the diamond plates be customized?

Yes, customized shapes and sizes are available based on given designs, including round, square, cube, and other special shapes.

Q:What are the main applications for these CVD diamond plates?

Applications include cutting tools for non-ferrous materials, wheel dressers, specialty knives, burnishing tools, wear parts, wire drawing dies, and optical windows.

Q:What surface finish options are provided?

Options include As Grown, Laser Cut Polished (Ra< 5nm, Flatness < 1 fringes @ 633nm), and Lapped (Ra< 200nm, Flatness < 1 fringes @ 633nm).