What payment terms are accepted?

Accepted payment terms include T/T, PayPal, Western Union, Small-amount payment, and Money Gram.

Is the diamond quality comparable to natural diamonds?

Yes, the quality is high as natural diamond, with good transparency and the ability to pass a diamond test pen.

Pink CVD Diamond CVD Rough Stone for Jewelry

Name: Pink CVD Diamond CVD Rough Stone for Jewelry
Brand: Chenguang Machinery & Electric Equipment Co., Ltd.
SKU: 1934314605

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

US$0.10-100.00

1 Piece

Product profile

Customization

Available

Color

White

Hardness

Model NO.

pink 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

High Hardness and Strength: Hardness reaches Mohs 10 with high impact resistance and great thermal stability.

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

Superior Optical Quality: Features good transparency, high diaphaneity, and low impurity levels.

Versatile Applications: Suitable for cutting tools, wheel dressers, specialty knives, and optical windows.

Multiple Production Methods: Produced via both HPHT and CVD processes to ensure high quality.

Precise Surface Finishing: Options include as-grown, laser cut, polished (Ra<5nm), and lapped surfaces.

Fast Lead Time: Average lead time is within 15 workdays for both peak and off-peak seasons.

Natural Diamond Quality: High quality comparable to natural diamond and passes diamond test pen verification.

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.