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Bangkok, Thailand · Est. 2022

GEMMATE

The Gemologist's House

Bangkok's home for gemstone cutting and gemological education — where craft meets science. Learn 5 cutting styles, gem grading, stone selection, and the professional knowledge used across the global gem and jewelry trade. Small classes, certified instructor, real industry experience.

Gemmate Faceting Studio Naita Jewelry Studio
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5 Cutting Techniques
From Cabochon to Precision Faceting — real machines, real skills, just like professional factories across Asia.
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Small Class Sizes
1–2 students per session — personal attention and detailed feedback from your instructor throughout every class.
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Certified Instructor
Certified gemologist with hands-on experience from real gem factories in Thailand.
Gemmate Faceting Studio

Cut your first gemstone with us

Master the Art of Gem Cutting — 5 Styles in One Studio, in the heart of Bangkok's gem district.

At Gemmate Faceting Studio, we specialise in teaching the timeless craft of gem cutting to students from around the world. Located in the heart of Bangkok's gem district, our school offers both a comprehensive 12-day course and a 1-day class — perfect for travellers or beginners who want to experience gem cutting for the first time.

Our hands-on courses cover multiple styles, including Thai traditional, Jambpeg, Precision, and Handpiece techniques. Each session is guided by an experienced instructor who has worked with leading gemological institutions and brings a deep understanding of both technique and artistry.

Whether you're looking to build a career, start a new hobby, or simply try something unforgettable while visiting Bangkok, Gemmate Faceting Studio is the place to begin your journey.

Taught in English No Experience Needed All Materials Provided Small Class Sizes
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Inside Gemmate Faceting Studio
Gemmate Faceting Studio · BIS Building, Bangrak, Bangkok
Machines & Techniques

5 styles of gem cutting

At Gemmate Faceting Studio, we teach you how to use real gem cutting machines and techniques used by professionals in the industry — from ancient methods to digital precision.

Cabochon machine
Cabochon Machine
Used for cutting and polishing smooth, domed stones without facets — relying on shape and colour rather than sparkle.
Perfect for · Opals, star stones, turquoise
Jambpeg faceting
Jambpeg
An ancient faceting method using a horizontal lap and a wooden dop stick. Develop angle control by eye and feel.
Perfect for · Learning history, manual skill
Handpiece faceting machine
Handpiece Faceting (Index Gear)
A machine using a handpiece connected to an index gear — controlled manual cutting with faster adjustments and a natural feel.
Perfect for · Controlled cuts, natural feel
Precision Facetron machine
Precision Faceting — Facetron
A modern mast machine with digital angle and height control. Achieve ideal symmetry and maximum repeatability.
Perfect for · High precision, ideal symmetry
Thai freehand cutting
Thai Freehand Cutting
The traditional Thai cutting method, used widely in real gem factories. The stone is guided by hand — no dial, no index gear. Relies entirely on the cutter's eyes and experience.
Perfect for · Fast production, maximizing rough yield
Inside Our Studio
Real machines.
Real industry skills.
Our studio is designed to provide a focused, hands-on learning experience in a clean, professional, and inspiring environment. Whether you're practising precision cuts or exploring freehand techniques, you'll be surrounded by the tools, machines, and atmosphere used in the real gem industry.
BIS Building, Bangrak · Bangkok's gem district
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Studio interior
Courses & Pricing

Choose your experience

From a single afternoon to a full 12-day professional course. All tools, machines, and rough stones are included. No experience needed. Small classes of 1–2 students per session.

Most Popular · Full Course · 1–2 Students Only
12-Day Full Gem Cutting Course
The complete journey through gem cutting — all 5 styles in one programme. 3 hours per day, Monday to Saturday. Learn Thai Freehand, Jambpeg Traditional, Handpiece Faceting, Precision Faceting with Facetron, and Cabochon Cutting. Ideal for hobbyists, jewelry designers, and anyone serious about building a real craft.
฿40,000
12 days · 3 hrs/day · Mon–Sat · All 5 styles
2-Day Facet Cutting Class · ฿4,000–6,000 · 3 Hours per Day
Jambpeg Traditional Cutting
Ancient method using a horizontal lap and wooden dop — develop angle control by eye and feel
฿4,000
Handpiece Faceting
Controlled manual cutting with a natural feel — faster adjustments than mast machines
฿5,000
Thai Freehand Cutting
Traditional Thai factory method — no dial, no index gear, pure hands, eyes, and experience
฿5,000
Precision Faceting — Facetron Machine
Digital angle and height control for ideal symmetry and maximum repeatability
฿6,000

Includes one faceted stone to take home · Choose your preferred cutting style

1-Day Cabochon Cutting Class · 2 Hours
Cabochon Cutting
Shape and polish a smooth domed cabochon — ideal for beginners and jewelry makers. Take home your finished stone
฿2,000

All classes · Monday – Saturday · 3:00 PM – 6:00 PM · All materials included · Small class: 1–2 students per session

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Your Instructor

Patharaphum Sudprasert (Poom)

Poom — Gemmate Instructor
Patharaphum Sudprasert (Poom)
Certified Gemologist & Lapidary Instructor · Founder, Gemmate

All classes at Gemmate Faceting Studio are taught by Poom — an experienced gem cutter and gemology instructor specialising in real-world cutting techniques. He has formal training from four internationally recognised institutions and hands-on experience working in professional gem factories across Thailand.

His teaching approach is patient, precise, and deeply practical. Every student leaves not only with a cut stone in hand, but with a genuine understanding of why every decision in the cutting process matters.

Credentials
—Gem-A — Gemmological Association of Great Britain
—AIGS — Asian Institute of Gemological Sciences, Bangkok
—Bann Jia Ra Nai Ploy — Traditional Thai gem cutting apprenticeship
—Bangkok Vocational Training School — Lapidary programme
Why Gemmate

Trained hands.
Real knowledge.

01
Real industry machines
We use the same gem cutting machines found in real gem factories across Asia — giving you practical, professional-grade skills from day one.
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Learn multiple techniques
Train on different types of machines and understand the pros and cons of each style — from precision faceting to traditional Thai freehand cutting.
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Small class sizes
Classes are kept intentionally small so every student receives personal, hands-on attention and detailed feedback throughout every session.
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Certified instructor
Learn from a certified instructor with deep knowledge of both craft technique and gemological science.
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Taught in English
All classes are conducted fully in English, welcoming students and travellers from every corner of the world.
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Everything included
All tools, machines, laps, and rough stones are provided. You keep every stone you cut. Just arrive ready to learn.
Getting Started

How to book

Simple and flexible — we schedule classes to fit you. Just reach out and we'll confirm a date that works.

01
Choose your class
Pick a 1-day introduction or the full 12-day course. Classes run Monday to Saturday, 3:00 – 6:00 PM. Closed Sundays.
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Contact us
Send a WhatsApp message or email to check available dates and reserve your spot. We usually reply within a few hours.
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Come and cut
Once confirmed, we prepare everything. No experience or equipment needed — just arrive and start cutting on day one.
WhatsApp Us Send an Email
Available Dates

Class Schedule

Check available dates below. To book a spot, contact us via WhatsApp or email.

Book via WhatsApp Send an Email
FAQ

Common questions

Do I need any experience?

None at all. Our courses are designed for complete beginners. You'll be cutting your first stone on day one, with your instructor guiding every step.

What do I need to bring?

Nothing. All tools, machines, laps, and rough stones are provided. Just wear comfortable clothes and bring your curiosity.

Are classes in English?

Yes, all classes are taught fully in English, welcoming students and travellers from around the world.

Can I keep the stones I cut?

Absolutely — every gemstone you cut during the class is yours to take home as a memento of your experience.

What are the class hours?

Monday to Saturday, 3:00 PM – 6:00 PM. We are closed on Sundays.

How do I get to the studio?

We're located at BIS Building Phase 2, Room 3E6, 119 Mehesak Road, Bangrak, Bangkok — in the heart of the city's gem and jewellery district.

What is the 12-day course like?

The full course covers all 5 cutting styles: Cabochon, Jambpeg, Thai Freehand, Handpiece, and Precision (Facetron). It runs at 3 hours per session, Monday to Saturday.

Student Reviews

What our students say

Real reviews from students around the world — straight from Google.

S
Shanaka Kathriarachchi
10 weeks ago
Google
★★★★★

Kun Poom has a wealth of knowledge and is a truly passionate teacher in the art of gem cutting. He is patient and will always go out of his way to help you. Definitely 5 🌟

G
Gene Stone
Local Guide · 10 weeks ago
Google
★★★★★

Mr Poom is the best gemcutting teacher in Bangkok. You'll have access to everything you need to learn this fascinating craft. Perfect location in the middle of the gem district. HIGHLY RECOMMENDED!

R
Remy
Local Guide · 5 days ago
Google
★★★★★

Did Poom's gem cutting course. Useful especially if you're in the trade, since you learn what separates a good cut from a bad one and how a stone goes from rough to finished. Not many places here teach gem cutting in English so it was easy to follow as a foreigner. Good experience, would recommend to anyone wanting to learn the cutting side.

See all reviews on Google →
NAITA
Coming Soon · Partner Brand

Naita
Jewelry Studio

Where Gems Become Jewels

The newest member of the Gemmate family. Naita Jewelry Studio will offer jewelry design courses and gemological studies — the perfect companion to everything you learn at Gemmate Faceting Studio.

Register Your Interest
Coming Soon
Contact

Book a class or enquire

Ready to book, or just have a question? Reach out anytime — we usually reply within a few hours.

WhatsApp
+66 86 835 8175
Email
poom_woon@hotmail.com
Instagram
@gemmate_faceting_studio
Address
BIS Building Phase 2, Room 3E6
119 Mehesak Road, Suriyawong
Bangrak, Bangkok 10500
Hours
Monday – Saturday · 3:00 PM – 6:00 PM
Closed Sundays
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