Silom Road, Bang Rak, Bangkok
The Jewelry Trade Center.
The Jewelry Trade Center — JTC — is the tower on Silom Road in Bang Rak, Bangkok that houses the city’s gemstone trade: dealer offices, cutting and treatment businesses, gemological labs and a ground-floor trading area, stacked floor on floor in one building.
If you are sourcing coloured stone in Bangkok, JTC is where most of the day happens. Dealers keep offices upstairs and parcels in safes; the lower floors are where stones get shown, compared and argued over. Very little of it is on a website.
- What it is
- Bangkok’s main gem and jewellery trading building
- Where
- Silom Road, Bang Rak, Bangkok
- Who is inside
- Dealers, cutters, treatment houses, gem labs
- GemBridge dealers in the building
- 6 confirmed, floors B1 to 47
- How stones are shown
- In person, from parcels, by appointment or at a counter
- How you get in
- The building is open; the good parcels are not
How buying there works
Seven things that decide how your day goes.
- 01Know the stone before you goSpecies, size, colour, treatment status, and whether you need one stone or a matched parcel. Dealers price their time by how specific you are.
- 02Get to the right floor, not the right buildingJTC is not one market — it is many separate businesses with different specialities. A ruby specialist on one floor cannot help you with paraiba on another.
- 03Arrive introducedThe trade runs on who vouches for you. Introduced buyers are shown the parcels that never reach the counter; walk-ins are shown what is convenient.
- 04See the stone in daylightAsk to look outside the office lighting, and ask what the stone has been through — heat, oil, filling. A dealer who answers plainly is the one to keep.
- 05Get the treatment status in writingFor anything at value, a report from a recognised lab. Several labs sit in the same district, and turnaround is usually days, not weeks.
- 06Negotiate per carat, not per stoneThe trade quotes per carat. Comparing two parcels on total price tells you nothing until you convert both.
- 07Settle and ship properlyAgree who handles export paperwork and insured shipping before money moves, not after.
Questions
JTC, answered.
- Can anyone walk into the Jewelry Trade Center?
- Yes — the building is open and you can reach dealer offices and the trading area. What is not open is the stock. Dealers keep their better parcels in the safe and show them to buyers they know or buyers someone has vouched for, so a cold walk-in usually sees the convenient stones rather than the good ones.
- Do I get a better price buying at JTC in person?
- You get closer to the dealer’s real price, which is not the same as automatically getting a good one. Price in the coloured-stone trade moves with who is asking. Without a reference point on quality you can pay a retail number inside a wholesale building.
- Is the Jewelry Trade Center the same as JTC?
- Yes. JTC is the everyday name for the Jewelry Trade Center on Silom Road, and dealers use the initials in addresses and on business cards.
- What stones are traded at JTC?
- Coloured stone above all — ruby, sapphire and emerald are the backbone, alongside tourmaline, spinel, aquamarine, paraiba tourmaline, tsavorite, tanzanite, zircon and pearls. Individual dealers specialise narrowly, often in one species and one or two origins.
- Do I need to speak Thai to buy at JTC?
- Not usually. Much of the coloured-stone trade in the building is run by Thai, Indian, Sri Lankan and Pakistani dealers who work in English every day. The harder gap is trade language, not spoken language — knowing what to ask for.
- How does GemBridge work with JTC dealers?
- We hold the relationships, so you do not have to build them. You send one WhatsApp message with what you need; we put it to the dealers in the building who actually carry that material, check the options in person as gemologists, then introduce you directly to the dealer who has your stone. You buy from them at their price — GemBridge takes no markup and no commission.
Skip the cold walk-in.
Tell us the stone. We ask the dealers who carry it, look at the options ourselves, and introduce you to the one who has yours.
Message us on WhatsApp- GemBridge does not sell stones and does not hold stock. We source, verify and introduce.
- Dealer identities stay private until you have chosen a stone — at which point you get the name, the WhatsApp number and the office address, and you buy direct.