Company Profile
HongKong Jingcan Crystal Craft Limited has always been committed to the development of future technologies and keenly grasped market trends, establishing a CVD Lab-grown Diamond Technology R&D Department. After years of dedicated research and technological breakthroughs, we have successfully developed professional CVD diamond growth equipment, as well as production and processing technologies for diamond rough and loose diamonds that meet market demands. Among them, our independently developed MPCVD equipment has been verified in practice: it produces diamond rough with stable quality, enables fast growth, and features energy conservation and environmental protection, securing broad commercial prospects for the company.
Jingcan locates in Longyou Industrial Zone, Quzhou City, Zhejiang Province. With a site area of over 60 acres and modern factory buildings spanning more than 35,000 square meters, we currently operate over 100 MPCVD machines, enabling an annual diamond production capacity exceeding 100,000 carats.
Our Product
Product Application
High Jewelry, Finished Jewelry, Jewelry Manufacturing, Gold, Platinum, 18K Gold
Our Certificate
GIA, IGI, NGTC
Production Equipment
MPCVD Equipment (Microwave Plasma Chemical Vapor Deposition System)
Production Market
European and American markets, markets of the five Central Asian countries
One-Stop Full-Cycle Service | Jingcan Hong Kong
Our group owns four physical locations: self-operated lab-grown diamond factory in Longyou, supporting production base in Hubei, physical showroom in Yiwu and cross-border operation center in Hong Kong. We serve jewelry wholesalers, offline stores and cross-border e-commerce sellers across Europe, America and the five Central Asian countries. We specialize in self-developed MPCVD lab-grown diamond rough, polished loose diamonds with Shanghai IGI certification, as well as high-end finished diamond jewelry made of solid gold, platinum and 18K gold. We provide full-chain services covering diamond cultivation, jewelry manufacturing, cross-border delivery and long-term maintenance.
Pre-Sales Professional Support
1. Multi-timezone dedicated overseas consultants: Our Hong Kong team serves global clients with 7×16 online support via WhatsApp, email and live chat, adapting to time differences of Europe, America and Central Asia. You can book factory tours to view full MPCVD production lines in our Longyou factory, or inspect physical spot samples at Yiwu showroom.
2. Customized supply solutions for regional markets: We recommend suitable diamond sizes, colors, clarities and jewelry styles based on consumption habits of European, American and Central Asian markets. Tiered quotations are offered for wholesalers and retailers, with complete IGI certification packages available.
3. Free samples & custom design drafts: Free sample service for loose diamonds and finished jewelry, shipped directly from Hong Kong warehouse overseas. Free 3D renderings and jewelry sketches for custom orders before mass production.
4. Transparent factory qualification documents: We provide full materials including factory scale, production capacity of over 100 sets MPCVD equipment, QC standards and IGI certificate samples. All diamonds support third-party re-inspection worldwide.
In-Sales Order Guarantee
1. Inventory linkage across four locations for fast delivery: Longyou factory produces diamond roughs, Hubei base assists processing, Yiwu stocks massive finished jewelry, and Hong Kong warehouse handles cross-border shipments exclusively, simplifying customs clearance and shortening global delivery time.
2. Full visible order tracking: We update real-time progress including production schedule, diamond polishing, certification processing, QC packing and tracking numbers. Production & QC videos are available for bulk orders.
3. Comprehensive customization service: Adjustable diamond specs and jewelry designs; material options: solid gold, platinum, 18K white/yellow/rose gold. Custom brand logo engraving and exclusive gift packaging are supported.
4. Double strict quality inspection: First selection at Longyou factory and secondary re-inspection before shipment from Hong Kong to control diamond brilliance, clarity and setting firmness. Full refund guaranteed for diamond rough below F color grade.
5. Insured compliant international logistics: We cooperate with professional jewelry logistics providers in Hong Kong with full cargo insurance and complete customs documents to reduce overseas clearance risks for buyers.
Reliable Long-Term After-Sales Support
1. 30-day quality return & exchange policy: Within 30 days after receipt, defective diamonds or jewelry without man-made damage can be replaced, restocked or fully refunded for free. Roughs below F color are fully refunded unconditionally.
2. Lifetime jewelry maintenance service: All finished diamond jewelry enjoys lifetime basic maintenance: free polishing and stone tightening. Resizing, stone replacement and re-plating are available at cost price.
3. Priority production & stable restock for regular clients: Exclusive client files record your best-selling items, regular diamond specs and purchasing cycles. Long-term partners get priority production schedule to guarantee steady supply.
4. Global after-sales service with time zone adaptation: Hong Kong team handles after-sales issues for European & American clients; Yiwu team supports Central Asian buyers to solve problems such as shipping damage, item mismatch and inconsistent specs efficiently.
5. Benefits for long-term cooperation: Tiered wholesale prices, free new arrival samples and exclusive exhibition discounts for steady purchasers. We provide free product photos, videos and certification materials to help expand your online and offline business.
Our Core Service Advantage
Our self-owned factory in Longyou keeps production costs under control; Yiwu showroom provides instant spot selection; Hubei base expands production capacity; Hong Kong hub offers one-stop cross-border export service. We form a closed-loop system including lab-grown diamond production, jewelry fabrication, international certification, global logistics and lifetime maintenance, a reliable supplier of lab-grown diamonds for jewelry merchants worldwide.
