Founded in 2011 in Wuzhou, Guangxi — a city responsible for most of the world's cubic zirconia and a fast-growing share of its moissanite — Holycome began as a stone-cutting workshop with four polishing machines and a single setting bench. The operation has since grown into a 6,000 m² facility that runs cutting, setting, polishing, plating, inspection and packing on one continuous line, producing roughly 120,000 finished pieces each month.
We manufacture directly rather than reselling goods from other factories. For a wholesale buyer that distinction matters: our quotations break down into cost components instead of a reseller's markup, lead times come off our own production schedule, and no intermediary sits between a problem and the person who can fix it.
Our product range
- Loose calibrated stones — moissanite, CVD and HPHT lab grown diamond, lab grown emerald, ruby, sapphire, paraiba, padparadscha and zircon, sorted into matched parcels.
- Finished wholesale jewellery — rings, bridal sets, men's bands, earrings and studs, necklaces and pendants, tennis bracelets and bangles.
- OEM / ODM production — tooling and bulk manufacture from your sketches, CAD files, reference photographs or physical samples.
- Trade supplies — workshop tools, setters' consumables and packing materials for buyers who also run their own bench.
Milestones
| Year | Milestone |
|---|---|
| 2011 | Founded in Wuzhou as a stone-cutting and setting workshop with 9 staff. |
| 2014 | First export orders to the United States and Australia; English-language trade desk established. |
| 2017 | Commissioned our first CVD lab grown diamond line and added in-house laser cutting. |
| 2020 | Began issuing IGI certification on bridal centre stones as standard practice. |
| 2022 | Expanded to a 6,000 m² facility; monthly capacity passed 80,000 pieces. |
| 2024 | Reached 120,000 pieces per month and customers in more than 60 countries. |
| 2025 | Added a dedicated sample and small-batch line for new wholesale accounts. |
How we work with trade buyers
Most of our accounts are importers, jewellery brands, chain retailers and marketplace sellers who need a supplier they can rely on across a season rather than one shipment. That shapes three commitments:
- Specification before price. Every quotation states stone grade, metal, gram weight, plating, MOQ and lead time, so if two suppliers quote differently you can see exactly why.
- Sample before bulk. Single samples sell at list price, and the sample cost is credited against your first order above 200 pieces.
- Consistency over novelty. When you reorder a design six months later, we work from the retained approval sheet so colour, weight and finish match.
Certification and compliance
Stones can be supplied with IGI, GRA or GIA documentation, and every parcel can carry a certificate-to-stone match sheet with photographs. Metal components ship with a material declaration, and nickel-release testing is available per production batch for buyers selling into the European Union and the United Kingdom.
Where our customers are
Our largest markets are the United States, the United Kingdom, Germany, France, Australia, Canada, Japan and the United Arab Emirates, with growing volumes in Brazil, South Africa and Southeast Asia. Orders ship by DHL, FedEx, UPS or EMS with insurance and tracking, and we prepare commercial invoices, packing lists and customs documentation for every shipment.
Visit us
Buyers are welcome at our Wuzhou facility. We can arrange a workshop tour covering the cutting room, setting line, polishing and plating stations, the quality-control bench and the packing area, and we can run a sample production of your design while you are on site. Contact us to arrange a visit or a live video walkthrough.
Why Wuzhou
Wuzhou produces the majority of the world's cubic zirconia and a rapidly growing share of its moissanite, which places the whole supply chain — rough material, cutting wheels, plating chemistry, findings, packaging — within a few kilometres of our workshop. That density has three practical effects for buyers. First, tooling and plating turnaround is measured in days rather than weeks. Second, rough and findings can be bought competitively at short notice, so a rush order does not automatically carry a premium price. Third, the city holds an unusually deep pool of experienced setters and polishers, which is the constraint most factories hit when they try to scale quality rather than volume.
How we are organised
The company runs in four functions: the stone division (cutting, sorting, calibration), the jewellery division (CAD, casting, setting, polishing, plating), quality and compliance, and the export desk. The export desk is deliberately separate from production so your specification questions are answered by someone whose job is accuracy rather than output. Every account has one named manager and one backup, both reachable by email and WhatsApp during Guangzhou working hours.
What we are investing in
Recent investment has gone into automated stone calibration, an additional rhodium plating line to shorten finishing queues, and X-ray fluorescence equipment for in-house plating thickness verification — a check most competitors send out. We prefer to verify a specification in our own building than discover a deviation after a shipment has landed in another country.