About Lumargent
We have manufactured moissanite and 925 sterling silver jewelry in Guangdong, China since 2010. Today our 2,000 m² workshop produces more than 100,000 pieces a month, and custom OEM/ODM work is the core of what we do.
Why We Focus on Moissanite and 925 Silver
Most factories choose one of two roads. They go up: 14K and 18K gold settings, higher prices, a narrower customer base. Or they go down: plated base metal and cubic zirconia, low prices, customers who leave the moment someone undercuts them.
We deliberately stayed in the middle, and built our whole production around it.
- Moissanite gives the brilliance and durability of a premium stone without a mined-diamond supply chain. Mohs 9.25 — harder than any other common alternative. GRA reports available.
- 925 sterling silver is real precious metal — hallmarked, re-workable and repairable, not a plated shell over brass.
- Together they let a brand sell a piece that looks like fine jewelry at a price a real customer will actually pay. That is the segment we know best.

How We Work With Clients
- You send a reference, we send a drawing. Photo, sketch or CAD file — you get a 3D drawing back before any metal is cut.
- A physical sample before mass production. Sampling takes 5–7 days. Nothing goes into volume until you have held the piece.
- MOQ from 30 pieces per design. Low enough to test a new design before committing your budget to it.
- 5,000+ stock designs. If you need to move faster than custom production allows, we can ship in-stock pieces within 24 hours.
- Written terms before you pay. Price, MOQ and lead time are confirmed in writing — not implied in a chat.
What We Are Not
We are not a marketplace, and we are not a trading company passing your order to an anonymous workshop. Design, casting, setting, polishing and plating all happen in our own workshop, and the pieces you approve are the pieces we produce.
Frequently Asked Questions
Where are you located?
Guangdong, China. Our 2,000 m² workshop is here and we welcome client visits and inspections.
How long have you been in business?
Since June 2010 — more than 15 years of manufacturing.
Do you accept small trial orders?
Yes, and we encourage them. A trial order is the cheapest way for both sides to find out whether the working relationship fits — before anyone commits to volume.
What payment terms do you offer?
Payment terms are agreed per order and stated in the quotation. We confirm everything in writing before production starts.