MOQ FROM 10 PCS/STYLE (NEGOTIABLE) · SAMPLING 5–7 BUSINESS DAYS · REPLY WITHIN 1 WORKING DAY · METALS 925 SILVER, 9K–18K GOLD · INCOTERMS EXW, FOB BANGKOK, CIF
ABOUT
From the Bangkok gem trade to a full jewellery manufacturer.
Crimson Gems has supplied the jewellery trade since 2011. For fourteen years the business cut and calibrated coloured stones to the specifications of jewellery manufacturers — work in which colour matching, size tolerance and treatment disclosure are the entire job, and in which a supplier is kept only for as long as every parcel matches the last.
In 2025 the company put a manufacturing floor beneath that stone department: casting, assembly, setting, plating and inspection as standing departments, under the same registered company and the same discipline. The jewellery operation is new. The company, its customer base and its habit of working to a specification are not.
Company history
2011
2011–24
2025
2026
Today
Established in Bangkok's gem trade — sourcing, cutting and calibrating coloured stones.
Years supplying cut and calibrated stones to jewellery makers, building the in-house stone department.
Full jewellery manufacturing begins — casting, setting, plating and inspection as standing departments.
Supplying wholesale customers in the UK, USA and Europe to consistent quality standards.
Bulk production and custom development for wholesalers, brands and retail chains — quoted, made and inspected in-house.
Facility and divisions
Manufacturing facility
919/408, 32nd Floor, Jewelry Trade Center, Silom Road, Bangkok 10500, Thailand. The JTC building places refiners, laboratories and freight agents in one tower, so sampling, assay and despatch happen within days of each other. Registered as Crimson Gems — company and tax registration 0105554078931, incorporated 2011. Member of the Thai Gem and Jewelry Traders Association (TGJTA).
Two divisions
Crimson Gems is the B2B manufacturing division — bulk production and custom development for wholesale buyers and brands. Jewelry by Crimson is the consumer brand, which runs on the same production floor and is held to the same inspection record. Designs developed for a wholesale customer are never produced for Jewelry by Crimson or sold under our own label.
How we work
Quoting in parts
Every order is broken into its technical components — metal, stones, labour, finishing — so the quotation is itemised and can be engineered to a target cost.
No date promises we cannot hold
We commit to a lead time only when our own departments can guarantee it. If a date cannot be held, we say so at enquiry, not at despatch.
Cost transparency
Costs follow the actual materials and labour in the piece. You see the breakdown, so you know what you are paying for.