Shenzhen ZKZ Jewelry Co., Ltd.
                                                                                                           
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CVD DEF VS VVS Lab Grown Diamonds 0.3ct-20ct with IGI Certificate - Factory Direct Wholesale Supplier

Price Negotiable
Price: USD$170- USD$390 Per Carat
MOQ: 1
Delivery Time: 3-7 Work Days
Brand: ZKZ
Product Description
Product Overview

ZKZ Diamonds offers premium CVD and HPHT lab-grown diamonds with IGI certification, available in sizes from 0.3ct to 20ct. Our factory-direct approach ensures competitive pricing and quality control for wholesale buyers.

Available Diamond Shapes & Sizes

We provide both Round Brilliant and Fancy Cut diamonds including Pear, Oval, Princess, Marquise, Emerald, Heart, Cushion, Vivid Cut, and custom shapes. Available sizes range from 1ct to 30ct to meet diverse jewelry production requirements.

Manufacturing Advantages
  • Factory direct pricing and quality control
  • Over 5,000 IGI-certified diamonds in stock
  • Professional IGI Certified Grader Team
Technical Specifications
Specification Details
Product Name Lab-Grown Diamonds
Certification IGI Certified
Brand Name ZKZ Diamonds
Place of Origin Shenzhen, China
Diamond Type Synthetic (lab created)
Diamond Shape Round Brilliant Cut and Fancy Cut
Diamond Color White, Pink, Blue, Yellow
Color Grade DEFGH
Clarity Grade VS-VVS
Diamond Cut Excellent
MOQ 1 Piece
Usage Jewelry Production, Ring, Earring, Necklace, etc.
Delivery Time Within 3 Working Days
Payment Methods D/A, T/T, Paypal
Product Images
CVD lab-grown diamond with IGI certification Round brilliant cut lab-grown diamond close-up Fancy cut lab-grown diamond collection Lab-grown diamond jewelry ring design Earring with lab-grown diamonds Necklace featuring lab-grown diamonds
Our Services
  • Lab-grown diamond processing and sales
  • Jewelry customization services
  • OEM manufacturing capabilities

From diamond selection to final jewelry completion, each process undergoes strict quality control. We prioritize long-term business relationships over one-time transactions.

Quality control process for lab-grown diamonds Professional diamond grading equipment
Production Process

Lab-grown diamonds replicate natural diamond crystal growth environments. While the growth environment differs, the physical properties, chemical elements, Moh's hardness scale, and refractive index are identical to natural diamonds. These diamonds are indistinguishable to the naked eye and pass professional diamond test pen examinations.

Lab-grown diamonds consist of 100% pure carbon and offer significant cost advantages, typically priced at 20-30% of natural diamond costs. Additionally, they are more environmentally friendly as they eliminate the need for mining operations.

Lab-grown diamond production facility
Frequently Asked Questions
Who are we?
We are based in Shenzhen, China, established in 2019, serving customers in South America (30%), North America (30%), Northern Europe (20%), and Middle East (20%). Our team consists of 51-100 professionals.
How do we guarantee quality?
All products undergo final inspection before shipment to ensure consistent quality standards.
What can you buy from us?
CVD & HPHT lab-grown diamonds and custom jewelry.
Why choose us over other suppliers?
As a prime source manufacturer, we offer competitive pricing, 100% satisfaction guarantee, and stable quality with reliable stock availability.
What services do we provide?
We accept customization for both diamonds and jewelry. Custom jewelry process includes design submission, diamond selection, CAD confirmation, production arrangement, and final approval with HD media.
Do you accept OEM service?
Yes, we accept OEM and can customize designs based on your requirements.
What are the payment terms?
We accept T/T and Western Union payments.
Are loose HPHT CVD diamonds in stock?
Yes, both HPHT and CVD diamonds are available from stock.
What is the delivery time?
1-2 working days for stock preparation and 5-7 working days for new production orders.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen ZKZ Jewelry Co., Ltd.
Location Room 704, NO.19,Shuibei Industrial Zone Luohu Shenzhen GuangDong China
Contact Person Vinico

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