Gemstone testing with professional instruments

GEM TESTING STANDARDS
YOU CAN TRUST

PROFESSIONAL  •  ACCURATE  •  TRUSTED

Gemstone testing and certification services
by expert gemologists, using modern instruments
and following international standards

INTERNATIONAL STANDARDS

Testing that follows world-class
gemological institute standards

MODERN INSTRUMENTS

Advanced technology used
throughout every test

EXPERT AND TRUSTED

A team of specialists
in gemology

ACCURATE RESULTS

Test results that are
precise and dependable

EMIL PRECIOUS CO., LTD. office

ABOUT US

ABOUT US

EMIL PRECIOUS CO., LTD. specialises in gemstone testing, carried out by expert gemologists with many years of experience. We are committed to service that is transparent, impartial and aligned with international standards, so that every client can feel completely confident.

READ MORE ABOUT US
EMIL PRECIOUS logo

SERVICE FEE

SERVICE FEE

Choose a certificate format to see the turnaround time and price per item

I.D. REPORT

ANALYSIS WITH FULL CERTIFICATE

Service Level Collection Time Price / Item
Standard From 3 days onwards 980 THB
Express Within 2 days / next-day collection 1,080 THB
Super Express Fastest Same day, while you wait 1,280 THB

I.D. PHOTOCARD

ANALYSIS WITH PHOTO CARD

Service Level Collection Time Price / Item
Standard From 3 days onwards 480 THB
Express Within 2 days / next-day collection 580 THB
Super Express Fastest Same day, while you wait 680 THB

I.D. MEMOCARD

ANALYSIS WITH CARD, NO PHOTO

Service Level Collection Time Price / Item
Standard From 3 days onwards 300 THB
Express Within 2 days / next-day collection 380 THB
Super Express Fastest Same day, while you wait 480 THB

Submitting several items? Contact us directly for submission schedules and further details

MEMBER ID click
Emerald ring

OPTIONAL SERVICES

ADDITIONAL CHARGES

  • Origin determination+200 THB/item
  • Diamond colour + clarity grading+200 THB/item
  • Large photo on the reverse+200 THB/item

REISSUE FEE

REISSUING A CERTIFICATE

  • Full certificate with photo500 THB/certificate
  • Certificate card with photo200 THB/card
  • Certificate card without photo100 THB/card
COUPON PRIVILEGE
Buy a coupon20,000THB
Get 20% offthe prices above

Use the discount an unlimited number of times within your coupon balance.

* The prices above include 7% VAT and are subject to change without prior notice.

GEMMOLOGY

GEMOLOGY

Gemology is the scientific study and testing of gemstones, carried out to identify the species, the origin and any treatment applied, and to assess value accurately.

  • Testing with modern instruments
  • Analysis of physical and optical properties
  • Identification of origin and treatment
  • Internationally recognised certificates
REQUEST MORE INFORMATION
Gemstone examination under a microscope

SAMPLE CERTIFICATE

SAMPLE CERTIFICATES

Diamond certificate

Diamond Certificate

Ruby certificate

Ruby Certificate

Blue sapphire certificate

Blue Sapphire Certificate

Emerald certificate

Emerald Certificate

Yellow sapphire certificate

Yellow Sapphire Certificate

Gemstone certificate

Jade Certificate

Bi-colour gemstone certificate

Colour Change Star Sapphire Certificate

IN PARTNERSHIP WITH INTERNATIONAL GEMOLOGICAL INSTITUTES

Gemological institute partner 1
Gemological institute partner 2
Gemological institute partner 3

FREQUENTLY ASKED QUESTIONS (FAQ)

Testing generally takes 1–3 working days, depending on the type of gemstone and the analyses required. If you need results urgently, please tell our staff on the day you submit the item.

Once the analysis is complete, we issue the certificate within 1 working day, including a certificate number for traceability.

Our certificates are issued by expert gemologists and follow international gemological institute standards, so they are accepted both in Thailand and abroad.

Yes. You may bring items in yourself or ship them to us. We recommend using a courier service that insures the item for its full value, and contacting our staff in advance so the paperwork can be prepared.

Yes. We distinguish natural gemstones from synthetic and imitation stones, and we report every form of treatment we detect.

The service fees shown on this website include 7% VAT and are subject to change without prior notice.

CONTACT US

EMIL PRECIOUS CO., LTD. (Company registration no. 0105535059144)

119 BIS Building (formerly the Warner Building), Phase 2, 4th Floor, Room 4F4 (next to the glass lift on the 4th floor), Mahesak Road, Suriyawong, Bang Rak, Bangkok 10500, Thailand
Tel : 0-2234-8872, 0-2237-1928, 0-2234-3700-9 (10 lines) Room 447   08-1912-8208 (English/Japanese)
Fax : 0-2237-1928
Email : info@emil.co.th , micky@emil.co.th