Are the diamonds certified?

Yes, the diamonds come with IGI certification.

What payment methods do you accept?

We accept T/T, PayPal, Western Union, Small-amount payment, and Money Gram.

What is the lead time during peak season?

The lead time during peak season is within 15 workdays.

4-20CT Rough CVD Diamond White Vvs Vs Raw Diamond Uncut Diamond

Name: 4-20CT Rough CVD Diamond White Vvs Vs Raw Diamond Uncut Diamond
Brand: Chenguang Machinery & Electric Equipment Co., Ltd.
SKU: 2096469422

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

US$10.00-50.00

1 carat

Product profile

Customization

Available

Diamond Clarity

VVS

Diamond Color

Diamond Cut

Rough/Uncut

Material

Synthetic Diamond/Man Made Diamond

Type

Hpht/CVD

Shape

Other

Color

Blue, Pink, White

Certification

IGI

Carat

0.6CT-8CT+

Usage

Jewelry

Keyword

Diamond 1 Carat Price

Transport Package

Sealed Plastic Bag and Carton

Specification

0.6ct+

Trademark

Chenguang

Origin

China

Production Capacity

5000carat Per Month

Key features

Multiple Color Options: Available in White, Blue, and Pink synthetic diamonds.

Wide Carat Range: Carats range from 0.6CT to 12CT+ depending on type.

High Clarity Grades: Clarity options include VVS, VS, and I3 grades.

Dual Production Methods: Offered in both HPHT and CVD synthetic diamond types.

IGI Certification: Certified by IGI for quality assurance.

Fast Delivery: Standard delivery time is 3-7 days after deposit confirmation.

Flexible Shipping: Transportation via DHL, TNT, Fedex, or custom requests.

Low MOQ: Minimum order quantity starts at 5-10 carats.

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: ≤18hTerms 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.