Adamas Gemological Laboratory of Indonesia
Apartemen Istana Harmoni Lt.1/Unit 2-S, Komplek Harmoni Plaza, Jl. Suryopranoto, Jakarta Pusat
Indonesia021-630-5546-47021-630-5546paramita_institute@agl-igp.comhttp://www.agl-igp.com AGT Gem Laboratory gdfsgdsfg
Okachimachi CY Bldg., 2nd Floor, 5-14-14 Ueno, Taito-Ku
Japan81-3-3834-658681-3-3834-6589info@agt.jphttp://www.agt.jp AJESP
Av. Paulista, 688 - 17? andar (Edif?cio Santa Filippa) Bela Vista, S?o Paulo/SP
Brazil55-11-3016-585055-11-3284-0459relacionamento@ajesp.com.brhttp://www.ajesp.com.br/ All India Gem & Jewellery Domestic Council (GJC)
Unit No.4, Ground Floor, Windfall, Sahar Plaza Complex, Andheri Kurla Road, J. B Nagar, Andheri (East), Mumbai
India91 22 6738272791 - 22 - 67382706secretary@gjc.org.inhttp://www.gjc.org.in American Gem Society
8881 W. Sahara Ave. Las Vegas, NV
United States866-805-6500info@ags.orghttps://www.americangemsociety.org/ American Gem Trade Association
3030 LBJ Freeway, Suite 840, Dallas, Texas
United States214-742-4367214-742-7334info@agta.orghttp://www.agta.org American Gemological Laboratories, Inc.
580 Fifth Avenue, Suite 706
United States212-704-0727212-764-7614http://www.aglgemlab.com/ American Institute of Diamond Cutting Inc.
1287 E. Newport Center Drive #202Deerfield Beach, Florida
United States954-574-0833diamondcutting@att.nethttp://www.diamondschool.com/ American Jewelry Institute LLC
315 West Ponce de Leon AvenueSuite 921Decatur, GA
United States404-271-3278678-623-3301info@ajigroup.orghttp://www.ajigroup.org/ American Society of Appraisers
11107 Sunset Hills Rd, Suite 310 Reston, VA
United States703-478-2228703-742-8471asainfo@appraisers.orghttp://www.appraisers.org Asian Gemmological Institute & Laboratory Ltd.
707-8, 7 / F, Hang Seng Tsimshatsui Building, 18 Carnarvon Road, Tsimshatsui, Kowloon
Hong Kong852-2723-0429852-2367-5201agil@agil.com.hkhttp://www.agil.com.hk/en/index.php Asian Institute of Gemmological Sciences
919/1 Silom Road, Jewelry Trade Center, South Tower, 11th Floor, Bangrak
Thailand66-2-267-431566-2-267-4329registrar@aigsthailand.comhttps://www.aigsthailand.com/ Assay Office Birmingham
AnchorCert Group 1 Moreton Street Birmingham B1 3AX
United Kingdom447-775 807 554marie.brennan@theassayoffice.co.ukhttp://www.theassayoffice.co.uk Association of Jewellers and Watchmakers of the Czech Republic
Kozi ul. 4 110 00 Praha 1
Czech Republic+420 244 464 906ludekhubrt@centrum.czhttp://www.skhcr.cz Brazilian Institute of Gems and Precious Metals
SHN, Qd. 1, Bloco D – Ed. Fusion Work & Live Sala 1.207 – Asa Norte
Brazil61-326-3926http://www.ibgm.com.br California Institute of Jewelry Training
PO Box 1973 Fair Oaks,
United States916-967-2211info@jewelrytraining.comhttp://www.jewelrytraining.com Canadian Gemmological Association
55 Queen St East, Lower Concourse #105Toronto, ON M5C 1R6
Canada1-647-466-2436info@canadiangemmological.comhttp://www.canadiangemmological.com Canadian Institute of Gemmology
P.O. Box 57010Vancouver, B.C.V5K 5G6
Canada604-530-8569http://www.cigem.ca Canadian Jewellers Association
27 Queen Street East, Suite 600, Toronto
Canada416-368-7616416-368-1986info@canadianjewellers.comhttps://www.canadianjewellers.com/ CDTEC GEMLAB
Calle 12 b # 6-82 piso 11
Colombia57-1 243 8871 - 746 7490direccion@gemlabcdtec.comhttp://www.gemlabcdtec.com/home/en Central Gem Laboratory
Miyagi Bldg., 5-15-14 Ueno, Taito-ku
Japan81-3-3836-162781-3-3832-6861http://www.cgl.co.jp/english/ Centro Informazione e Servizi Gemmologici (CISGEM)
Via Vittor Pisani, 12 20124 Milano Italia
Italy39-02-366-85000info@cisgem.comhttps://www.cisgem.com/ Chanthaburi Gem and Jewelry Traders Association
1/59 Maharaj Rd., Tambon Tarad, Amphoe Muang, Chanthaburi
Thailand039-303-118-966 39 303100cga.chan2545@gmail.comhttps://www.web.facebook.com/chanthaburiCGA/?_rdc=1&_rdr China Gems Laboratory Ltd. (CGL)
12/F, Luk Fook Jewellery Centre, No. 239 Temple Street, Jordan, Kowloon
Hong Kong852-2783-2793852-2770-7185info@chinagemslab.comhttp://www.chinagemslab.com/en/ Denmark Retail Jewellers Association
Kongevejen 270 Dk 2830 Virum
Denmark45-4583-521145-4583-0611info@guldsmed.dkhttp://www.guldsmed.dk DFHK - The Diamond Federation of Hong Kong
Suite 5B, Hong Kong Diamond Exchange Building 8-10 Duddell Street, Central, Hong Kong
Hong Kong852-2524-5081852-2877-9831info@dfhk.orghttp://www.dfhk.org Diamond Certification Laboratory of Australia (DCLA)
Suite 901, Level 9, Citisite House 155 Castlereagh Street Sydney NSW
Australia612-9261-2104612-9261-4263info@dcla.com.auhttp://www.dcla.com.au Diamond Federation of Hong Kong, China Limited
Suite 5B, Hong Kong Diamond Exchange Building, 8-10 Duddell Street, Central, Hong Kong
Hong Kong852-2524-5081852-2877-9831info@dfhk.orghttp://www.dfhk.org Diamond Manufacturers and Importers Association of America
P.O. Box 5297 Rockefeller Center Station, New York
United States212-944-2066516-482-2749http://www.dmia.net DSEF - German Gem Lab (German Foundation for Gemstone Research)
Prof.- Schlossmacher-Str. 1, D-55743 Idar-Oberstein
Germany49-6781-5084049-6781-508419info@gemcertificate.comhttp://www.edelsteinlaboratorien.de/html/index.html E.G.L. South Africa, European Gemological Laboratory
Suite E8, First Floor, The Paragon, 1 Kramer Road, Off Skeen Boulevard, Bedfordview, Johannesburg
South Africa2711-334-45272711-334-2193admin@egl.co.zahttp://www.egl.co.za EGL Antwerp
Diamond Plaza Bldg.Hoveniersstraat 55,2018 Antwerp
Belgium32-3-233-4654info@eglantwerp.euhttp://www.eglantwerp.eu/ EGL France
9 rue Buffault
France33-1-4016-163533-1-4874-2036egl@iway.behttp://www.expertisediamant.fr/ EGL USA Gemological Laboratory
888 EGL USA4
United States888-345-8724info@eglusa.comhttp://www.eglusa.com Elmyr Gemological Services Elmyr Services BVBA
Michel & Elie Sch?nfeld, Hoveniersstraat nr 30, 2018 Antwerp
Belgium32-233-7547http://www.elmyrservices.com EPI Institute Fur Edelstein Prufung
Riesenwaldstr.6 D-77797, Ohlsbach
Germany49-7803-600808info@epigem.dehttp://www.epigem.de European Gemological Laboratory
Laboratories, B?ehov? 202/4, 110 00 Praha 1
Belgiumhttp://www.egllaboratories.org/ European Gemological Laboratory (India) d.b.a. International Gemological Laboratories
520, Parekh Market, 39, Kennedy Bridge, Opera House, Mumbai - 400004
India91-22-4045388891-22-23868517contact@eglindia.bizhttp://www.eglindia.com/ Far East Gemological Institute
12 Arumugam Road, #04-02 LTC Building B
Singapore65-6745-854265-6745-2562tay@gem.com.sghttp://www.gem.com.sg Federation of Goldsmiths and Jewellers Associations of Malaysia (FGJAM)
89, 4th floor, Jalan Sultan
Malaysia603-2078 4892603-2078 4895info@fgjam.org.myhttp://www.fgjam.org.my Federation Of Nepal Gold & Silver Dealers’ Association
Naxal, Kathmandu, Nepal
Nepal977 1 4432270977 11 4432270info@fenegosida.orghttp://www.fenegosida.org Gem and Lapidary Dealers Associaton Inc.
120 Derwood Circle Rockville, MD
United States301-294-1640301-294-0034info@glda.comhttp://www.glda.com Gem Certification and Assurance Lab (GCAL)
580 Fifth Avenue, Lower Lobby
United States212-869-8985info@gemfacts.comhttp://www.gemfacts.com Gem Scan International, Inc.
27 Queen Street East, Suite 406, Toronto
Canada416-868-6656416-868-6558info@gslabscanada.comhttp://www.gemscan.com/ Gem Studies Laboratory (GSL)
Suite 2, Level 5, 301 Pitt Street,Sydney NSW
Australia612-9264-8788612-9267-8556info@gsl.net.auhttps://www.gemstudieslaboratory.com.au/ Gem Testing Laboratory (GTL)
Rajasthan Chamber Bhawan, 2nd Floor, Mirza Ismail Road, Jaipur
India91-141-256822191-141-2567-921info@gtljaipur.infohttp://www.gtljaipur.info/ Gemmological Association & Gem Testing Laboratory of Great Britain (Gem-A)
21 Ely Place London EC1N 6TD
United Kingdom44-207-404-333444-020-7404-8843information@gem-a.comhttps://www.gem-a.com/ Gemmological Association of Hong Kong
P.O. Box 97711, Tsim Sha Tsui, Kowloon
Hong Kong852-2366-6006852-2780-5920info@gahk.orghttp://www.gahk.org/tc/background.asp Gemmological Association of Australia
Gaa Statutory Office Gemmology House, 24 Wentworth Avenue, Sydney
Australia61-1300-436-338learn@gem.org.auhttp://www.gem.org.au Gemmological Institute of India (GII)
29 Gurukul Chambers, 187-189, Mumbadevi Road, Mumbai
India91-22-2342-0039, 5651-903091-22-2367-9189gemforum@giionline.comhttp://www.giionline.com Gemmologisches Institut Hamburg
Business Center / 6. Stock, Poststrasse 33, 20354 Hamburg
Germany49-40-352-01149- 40-343-4 19https://www.gemmologisches-institut-hamburg.de/ Gemmologists Association of Sri Lanka
275/75, Stanley Wijesundara Mawatha
Sri Lanka94 117 202 032info@gemmology.lkhttp://www.gemmology.lk Gemological Center (G.C.I.) Ltd
Diamond Exchange, Maccabi Bldg., Suite 1955-1956, 1 Jabotinsky St.
Israel972-3-751-4782972-3-613-2651gci@gci-gem.comhttp://www.igc-gem.com Gemological Center of Bahia
Ladeira do Carmo, N ? 37, Santo Antonio (Historic Center), Salvador - Bahia
Brazil55-71-3326-1747cgb@sicm.ba.gov.brhttp://www.cgb.ba.gov.br Gemological Center, Department of Geology, Moscow University
Gemological Center, Department of Geology, Moscow University Main Building, Leninskie Gory, GSP-1, Moscow, Russia
Russian Federation7-495-958-5947expert@geol.msu.ruhttp://www.gem-center.ru/en/ Gemological Institute of America
The Robert Mouaward Campus, 5345 Amada Drive, Carlsbad
United States1-800-421-72501-760-603-4080https://www.gia.edu/ Gemological Laboratory of the Center for Mineral Technology (CETEM) Ministry of Science & Technology (MCT)
Av.Ip. 900, Ilha da Cidade Universit.ria, CEP
Brazil55-21-3865-722255-21-2260-2837cetem.info@cetem.gov.brhttp://www.cetem.gov.br Gemological Science International
581 Fifth Avenue, 4th Floor
United States212-207-4140212-207-4156info@gemscience.nethttp://www.gemscience.net Gemresearch Swiss Laboratory
GRS Gemresearch Swisslab AG Baumschulweg 13 6045 Meggen
Switzerland41-41-210-313141-41-210-3134swiss@gemresearch.chhttp://www.gemresearch.ch/ Gems & Jewelry Trade Association of China
Floor 22, Building C, Global Trade Center 36 North Third Ring Road, Dong Cheng District, Beijing
China86-10-5827607886-10-58276078int@jewellery.org.cnhttp://www.jewellery.org.cn/en_2.aspx Gems & Precious Metals Lab., Dubai Central Laboratory Dep.
P.O.Box 67
United Arab Emirates9714-221-5555info@dm.gov.aehttp://www.vgn.dm.gov.ae Gemtech Lab
4bis route des Jeunes CH-1227 Les Acacias, Gen?ve SUISSE
Switzerland4122-731-5880info@ggtl-lab.orghttp://www.gemtechlab.com General Directorate of Custom - Customs Technical Laboratories
Budejovicka 7, Prague 4
Czech Republic420 261 331 111podatelna@cs.mfcr.czhttps://www.celnisprava.cz/en/Pages/default.aspx Gold and Jewelry Group Dubai
P.O. Box : 26909,Office 306,Third Floor, Gold Land, Deira, Dubai
United Arab Emirates00971-4-2291188info@dubaicityofgold.aehttps://www.dubaicityofgold.com/ Gold Traders Association
33/124 Wallstreet Tower 24th Floor Surawong rd, Bangruk Bangkok
Thailand662-020-9000662-020-9099contact@goldtraders.or.thhttp://www.goldtraders.or.th Guangdong Gems & Jade Exchange
Management Center: 706, East Block, Times Square, 28#, Tianhe Road (North), Guangzhou, Guangdong
China86 20 3902271786 20 39022163GDGJE@gdgje.comhttp://www.en.gdgje.com/ Gubelin Gemmological Laboratory
Maihofstrasse 102 6006 Lucerne
Switzerland4141-417-0011gubelin.luzern@gubelin.comhttp://www.gubelin.com/en/gemmology/gemlab Guild of Philippine Jewellers
45/3F A Visayas Ave. Brgy Vasra, Quezon City
Philippines624 - 68 - 26info@gpji.orghttp://www.gpji.org Harold Weinstein Laboratory
55 Queen Street East, Suite 1301, Toronto
Canada416-366-6518416-366-6519http://www.hwgem.com HKD Diamond Laboratories Canada
127, Panchratna, Opera House, Mumbai
India91-022-2368-333691-022-2368-3337infoindia@hkdlab.comhttp://www.hkdlab.com Hong Kong Gems Laboratory
248 Des Voeux Rd,Tung Hip Comm.
Hong Kong852-2815-1880852-2854-3970http://www.hkgems.com.hk/ Hong Kong Jade & Stone Laboratory Limited
Room 1401-2, Chow Sang Sang Building, 229 Nathan Road., Kowloon
Hong Kong852-2388-9688hkjsl@netvigator.comhttp://www.JadeiteLaboratory.com.hk Hong Kong Jewelry & Jade Manufacturers Association
Flat A, 12th Floor, Kaiser Estate Phase 1, 41 Man Yue Street, Hunghom, Kowloon
Hong Kong(852) 2543 0543(852) 2815 0164hkjja@hkjja.orghttp://www.jja.com.hk Hong Kong Jewelry Manufacturers Association
Unit G, 2/F Kaiser Estate Phase 2 , 51 Man Yue Street , Hunghom , Kowloon , Hong kong
Hong Kong+852 2766-3002enquiry@jewelry.org.hkhttps://www.jewelry.org.hk/en/ HRD Antwerp Institute of Gemmology
Hoveniersstraat 22
Belgium32-3-222-061132-3-222-0699info@hrdantwerp.behttp://www.hrd.be I.G.I Dubai, UAE International Gemological Institute
Office Unit No 27-A, B, C & G, Almas Tower, Plot No. LT-2, Jumeriah Lake Towers, Dubai
United Arab Emirates9714-450-80279714-450-8023dubai@igi.orghttp://www.igiworldwide.com I.G.I. Bangkok, Thailand International Gemological Institute
BGI Bldg., 9 Soi Charoen Krung 36, New Road
Thailand662-630-6726662-630-6728thailand@igi.orghttp://www.igiworldwide.com I.G.I. Hong Kong International Gemological Institute
Suite 501, Tower 1, The Gateway, Harbour City, 25 Canton Road, Tsim Sha Tsui
Hong Kong852-2522-9880852-2522-9887hk@igiworldwide.comhttp://www.igiworldwide.com I.G.I. Los Angeles, USA International Gemological Institute
Suite 1200 550 South Hill Street,Los Angeles
United States1-213-955-00081-213-955-8060losangeles@igi.orghttp://www.igiworldwide.com I.G.I. New York, USA International Gemological Institute
551 Fifth Avenue, 7th floor New York, NY
United States212-753-7100212-644-7759newyork@igi.orghttp://www.igiworldwide.com I.G.I. Tel Aviv, Israel International Gemological Institute
Yahalom Building, Room 3178-3182 Tuval 21 52520 Ramat Gan
Israel972 3 756 4200972 3 613 7231israel@igiworldwide.comhttp://www.igiworldwide.com I.G.I. Tokyo, Japan International Gemological Institute
UT Bldg., 2-21-13 Higashi Ueno Taito-Ku, Tokyo
Japan81-3-5807-295881-3-5807-2959japan@igiworldwide.comhttp://www.igiworldwide.com IGC International Gemological Laboratory Ltd.
12 Smolnaya st., Moscow, Russia, 125493 the building of "Diamond World"" Office 250 (2028)"
Russian Federation095-4522278; 095-4523376095-4522278; 095-4523376igclab@mail.ruhttps://www.igc-gem.com/ IGC Universal Gemological Laboratories
Diamond Exchange, Maccabi Bldg., Suite 1955-1956, 1 Jabotinsky Street
Israel972-3-751-4782972-3-613-2651contact@igc-lab.comhttp://www.igc-lab.com/ IGI Italian Gemmologico Institute
Piazza San Sepolcro, 1 - Milano, 20123
Italy39-02-805-049-9239-02-605-05-765info@igi.ithttps://www.igi.it/en/homepage Independent Gemological Laboratories LLC.
25 W 45th Street, Suite 1406
United States212-382-0008sales@lglab.comhttp://www.dia-lab.com Indian Diamond & Colorstone Association
56 West 45th Street, Suite 705, New York
United States212-921-4488212-768-7935Office@idcany.orghttp://www.idcany.org/ Indian Diamond Institute
Katargam, GIDC, Sumul Dairy Rd., P.B.no.508, Surat
India91-261-240784791-261-2407849info@diamondinstitute.nethttp://www.diamondinstitute.net Indian Institute of Gemology
Gaffor Colony, Alam Building, 1st Floor, Uditnagar,Rourkela,Odisha
India91-11-352-0974iig@nda.vsnl.net.inhttp://www.indianinstituteofgemology.com/ Industrial Diamond Association of America
P.O. Box 29460 Columbus, OH
United States614-797-2265614-797-2264tkane-ida@insight.rr.comhttp://www.superabrasives.org/superabrasives/ Institut de gemmologie de Madagascar (IGM)
Route d''Andraisoro Ampandrianomby
Madagascar261 (0)20 22 591 37igm@igm.mghttp://www.igm.mg/ Institut National de Gemmologie Paris & Lyon
33, Rue La Boetie, Paris
France33-104-770-2383contact.paris@ingemmologie.comhttps://www.ingemmologie.com/ Instituto Gemologico Espanol
C/ Alenza, 1 ? 28003 Madrid, Espa?a
Spain(+34) 914 414 300info@ige.orghttp://www.ige.org International Colored Gemstone Association
31 West 47th St., Suite 1103, New York, NY
United States1 (212) 620-0900ica@gemstone.orghttp://www.gemstone.org International Gemological Institute (IGI) - Mumbai
702, The Capital, Bandra Kurla Complex, Bandra (E), Mumbai 400 051
India91 22 4035 255091-22-2364-2861india@igiworldwide.comhttp://www.igiworldwide.com International Gemological Laboratories (IGL)
601 Marsh Road N.E., Calgary, Alberta
Canada1-403-264-85261-403-264-8527info@intergemlabs.comhttp://www.intergemlabs.com Intternational Gemmological Institute (IGI)
Schupstraat 1
Belgium32-3-401-088832-3-232-0758europe@igiworldwide.comhttp://www.igiworldwide.com Israel Jewelers Association
22 Nahar Hayarden st. Modi'in
Israel+972-54-6797777info@ijma.org.ilhttp://www.ijma.org.il Istanbul Chamber of Jewelry
Piyerloti Cad. Dostlukyurdu Sok. No:3 Cemberlitas
Turkey0-212-516-27570-212-516-1278info@iko.org.trhttp://www.iko.org.tr/ Japan Jewellery Association
2-23-25, Higashiueno, Taito-ku, Tokyo
Japan+81-3-3835-8567+81-3-3839-6599info@jja.ne.jphttp://www.jja.ne.jp Japan Pearl Exporters' Association
Japan Pearl Center 122, Higashi-machi, Chuo-ku
Japan+81-78-331-4031+81-078-331-4345jpeakobe@lime.ocn.ne.jphttp://www.japan-pearl.com Jewel Fest Club
Jewelry Trade Center, 52nd Floor, 919/616 Silom Rd., Bangrak
Thailand662-630-1390-7jfc.pornpen21@gmail.comhttps://www.facebook.com/Jewel-Fest-Club-261626790871767/ Jewelers of America
120 Broadway, Suite 2820 New York, NY
United States(800) 223-0673members@jewelers.orghttp://www.jewelers.org Jewellers Association of Australia
Level 35, One International Tower, 100 Barangaroo Avenue, Sydney NSW
Australia612-8046-6878info@jaa.com.auhttps://www.jaa.com.au/contact Jewellers Vigilance Canada
27 Queen Street East , Suit 600, Toronto
Canada416-368-4840416-368-5552info@jewellersvigilance.cahttp://www.jewellersvigilance.ca Jewellery Distributors' Association of the United Kingdom
Federation House, 10 Vyse Street, Birmingham, B 18 4BR
United Kingdom44-0-121-236-265744-0-121-236-3921secretariat@jda.org.ukhttp://www.jda.org.uk Korea Federation of Jewelry Manufacturers Association
4F 503, Joonang B/D, 72 Dongwhamun-ro, Jongno-gu, Seoul, Republic of KOREA
Korea, Republic of La Societe de Gemmologie du Quebec Inc.
CENTRE DE GEMMOLOGIE DU QU?BEC 1100 Cremazie East Boulevard Montreal (Qu?bec) H2P 2X2
Canada1-514-273-5233info@gemmologie.cahttps://www.gemmologie.ca/EN/ Laboratoire Franais de Gemmologie
30, rue Notre-Dame des Victoires - 75002 Paris
France33-1-4026-2545contact@lfg.parishttps://www.laboratoire-francais-gemmologie.fr/ Labtrade Gemological Laboratory
4590 N Rancho Dr #1, Las Vegas
United States702-220-5500702-220-5592sales@lglab.comhttp://www.lglab.com Lao Gems&Jewelry Trader Association
P.O. Box 9231 Villa LuBeDu Saphanthong Tai Village Vientiane, Laos
Lao Republic+856 20 77 125 000info@jclao.comhttps://www.jclao.com/ Mandalay Gem Association Trading Co., Ltd
91(A), 77th St, Bet: 26thx27th, Mandalay
Myanmar95-231248 Meycauayan Jewelry Industry Association
Philippine Jewelry Center, Provincial Sports Complex, Pandayan, Meycauayan, Bulacan
Philippines(+63) 44 228-2840mjia85@yahoo.com.phhttps://www.meycauayanjewellers.com Mineralogical Research Group, Dept. of Earth & Ocean Sciences, Univ. British Columbia
Department of Earth, Ocean and Atmospheric Sciences and Director, Integrated Sciences University of British Columbia Vancouver, BC
Canada1-604-822-12891-604-822-6088groat@mail.ubc.cahttp://www.eos.ubc.ca/personal/groat Mineralogy & Gem Testing Laboratory, Directorate of Mining & Geology, Gov. of Kerala
Directorate of Mining & Geology, Kesavadasapuram Pattom Palace P.O.Thiruvanthapuram
India91-471-2556790, 244742991-471-2447429geo.thi.dmg@kerala.gov.inhttp://www.dmg.kerala.gov.in/index.php?option=com_content&view=article&id=82&Itemid=88 Myanmar Gems And Jewellery Entrepreneus Association
No.(68),Kabar Aye Pagoda Road,Mayangon,Yangon.
Myanmar959-426219597info@mgjea.orghttp://www.mgjea.org/ National Gem & Jewellery Authority (NGJA)
25, Galle Face Terrace
Sri Lanka94-11-239-0645/894-11-239-0649info@ngja.gov.lkhttp://www.ngja.gov.lk/en/ National Gemstone Testing Centre (NGTC)
22F Tower C, Global Trade Center, 36# North ThirdRing East Road, Beijing 100013, P.R.China
China86-010-5827600086-010-58276000http://www.ngtc.com.cn/index.php?l=en Nepal Gem and Jewellery Association : NEGJA
4th Floor, Kesha Plaza, New Road, Kathmandu, Nepal
Nepal977-1-4220210977-1-4252181nepalgja@mos.com.nphttp://www.negja.org.np Netherlands Gemmological Laboratory
Darwinweg 2, 2333 CR Leiden
Netherlands31-71-568-759631-71-568-7666nel@naturalis.nlhttps://www.naturalis.nl/en/about-us Odile Civitello, gemmologue et evaluateur enr.
620 Cathcart Street Suite 317 Montreal, Quebec
Canada1-514-813-8194info@odilecivitello.comhttp://www.odilecivitello.com/en/ Philippine Association of Pearl Producers/Exporters
45 Don Vicente Madrigal Avenue, Corinthian Gardens, Quezon City ,
Philippines+63-(632)810-0572 Professional Gem Sciences Laboratory, Ltd.
5 South Wabash Avenue, Suite 315 Chicago, IL 60603
United States312-920-1541myriam.pgslab@yahoo.comhttps://www.pgslaboratory.com/ Quebec Jewellers Corporation
868, rue Brissette,Sainte-Julie, J3E 2B1
Canada514-485-3333514 420 2828lisepetitpas@cbq.qc.ca RAG Ricerche Analisi Gemmologiche
corso San Maurizio, 52 Torino
Italy39-011-88716639-011-8128715info@raglabgem.comhttp://www.raglabgem.com Saigon Jewelry Association
586 Tran Hung Dao Street, Ward 14, District 5
Vietnam(84-8) 38591103; 39751486info@hoikimhoansaigon.orghttp://www.hoikimhoansaigon.org Shanghai Gems & Jade Exchange
25F, Lansheng Building, 8 Milddle Huaihai Road, Huangpu District, Shanghai
China+86-21- 6319 1818info@e-ciie.com Sincere Overseas Jewelry Ltd. (Laboratory)
B2 1/f, Winner Building, 36 Man Yue Street, Hung Hom , Kowloon
Hong Kong852-2891-3136852-2311-3808info@jewelryappraisal.com.hkhttp://www.jewelryappraisal.com.hk/ Singapore Jewellers Association
No38-d, North Cannal Rd.
Singapore065 -533-4053065-533-0867info@sia.org.sghttp://www.sja.org.sg SISTEMA AJORIO-Laboratorio Gemologico
Avenida Graca Aranha, 19 Gr.404
Brazil55-21-2220-8004ajorio@ajorio.com.brhttp://www.sistemaajorio.com.br/web/index.php Sistema Sindijoias Ajomig
Rua dos Goitacazes, 375 - sobreloja Centro - Belo Horizonte
Brazil55-31-3214-3545sindijoiasajomig@fiemg.com.brhttp://www.sindijoiasmg.com.br/plus/ Spanish Fashion Jewellery Manufactures Association
Mahon Balearic Islands
Spain+34 971 360 313sebime@sebime.orghttp://www.sebime.org Sri Lanka Gem & Jewelry Association
33/2, Melbourne Avenue Colombo 04, Sri Lanka
Sri Lanka94-11-259-722694 11 2 597 250slgja@facetssrilanka.comhttp://www.slgja.org SSEF Swiss Gemmological Institute
Aeschengraben 26, CH-4051 Basel,
Switzerland41-61-262-064041-61-262-0641http://www.ssef.ch Swedis Jeweller's and Goldsmith's Association
Klostergatan 19, S-753 21
Sweden46-18-132-30046-18-132-324info@guldmedsforbundet.sehttp://www.guldsmedsforbundet.se Taiwan Jewelry Industry Association
4F, No.609, Linseng N. Road., Taipei, Taiwan
Taiwan886-2-25862232886-2-25862301tjia.since69@msa.hinet.nethttp://www.en.taiwanjewelry.org.tw/front/bin/home.phtml Thai Diamond Manufacturers Association
Modern Town Building, 18th Floor, 87/130-140 Soi Ekamai 3, Sukhumvit 63 Rd.
Thailand662-390-0341662-381-2780http://www.thaidiamonds.net/ Thai Gem and Jewelry Traders Association
52nd Fl., Jewelry Trade Center Bldg., Silom Rd., Bangrak
Thailand66-2-630-1390-766-2-630-1398-9tgjta@thaigemjewelry.or.thhttp://www.thaigemjewelry.or.th/ Thai Silver Exporters' ASSOCIATION
30 Surasak Road, Silom Bangrak, Bangkok
Thailand668-9779-2620info@thaisilver.or.thhttp://www.thaisilver.or.th/ The Accredited Gemologists Asssociation
3315 Juanita Street, San Diego CA
United States844-288-4367https://www.accreditedgemologists.org/ The Bahrain Institute for Pearls & Gemstones
4th floor, East Tower, Bahrain World Trade Centre, Manama
Bahrain973-172-01333info@danat.bhhttps://www.danat.bh/ The Gem & Jewellery Export Promotion Council (GJEPC)
Office No. AW 1010, Tower A, G Block, Bharat Diamond Bourse, Next to ICICI Bank, Bandra-Kurla Complex, Bandra - East, Mumbai
India91 22 2654460091 - 22 - 26524764ho@gjepcindia.comhttp://www.gjepc.org The Gem and Jewelry Institute of Thailand (Public Organization)
140, 140/1-3, 140/5 ITF - Tower Building. 1st - 4th and 6th Floor, Silom Road, Suriyawong, Bangrak, Bangkok 10500,Thailand
Thailand66-2-634-499966-2-634-4970jewelry@git.or.thhttp://www.git.or.th The Goldsmiths' Company Assay Office
Goldsmiths' Hall, Gutter Lane, London
United Kingdom020 7606 8971https://www.assayofficelondon.co.uk/ The Hong Kong Exporters' Association
Rm. 924, Star House, 3 Salisbury Road, Tsimshatsui, Kowloon
Hong Kong852-2730-9851852-2730-1869hkea@exporters.org.hkhttp://www.exporters.org.hk The Hong Kong Jewellers' and Goldsmiths' Association
13/F, Hong Kong Jewellery Building 178-180 Queen’s Road Central
Hong Kong(852)2543 9633enquiry@hkjga.hkhttps://www.hkjga.hk/en/ The Institute of Gemmology Monaco
Park Palace 6, Impasse de le Fontaine
Monaco377-9770-8229http://www.igm.mc The International Precious Metals Institute
5101 North 12th Avenue, Suite C Pensacola, Florida
United States850-476-1156mail@ipmi.orghttp://www.ipmi.org The Israel Diamond Institute
Derech Ze'ev Jabotinsky 1 , Ramat Gan
Israel972-543452913support@israelidiamond.co.ilhttps://www.en.israelidiamond.co.il/ The Jewelers Board of Trade
95 Jefferson Boulevard, Warwick
United States401-467-0055401-467-6070jbtinfo@jewelersboard.comhttp://www.jewelersboard.com The Jewellers Association Jaipur
Jeweller Association Building, 252, Johari Bazar Rd, Jaipur, Rajasthan 302003
India+91 141 256 3829info@jajaipur.comhttps://www.jajaipur.com/ The Jewellery Council of South Africa
The Hamlet, 27 Ridge Road, Parktown, Johannesburg
South Africa(011) 484 5528086 504 9512admin@jewellery.org.zahttp://www.jewellery.org.za The Jewelry Insurance Appraisal Institute
137 Muhammad Ali Blvd., Suite 302Louisville KY
United States510-444-4811dhendry@jcrs.comhttp://www.jcrs.com The National Association of Jewellers
10 Vyse Street, Birmingham B18 6Lt
United Kingdom0121-237-11100121-237-1113info@naj.co.ukhttp://www.naj.co.uk/ The Retail Jeweler Organization
115 West 4th St North, PO Box 1045, Newton
United States800-247-1774rjo1966@netins.nethttps://www.rjomembers.com/ The Silver Institute
The Silver Institute 1400 I Street,NW Suite #550 Washington, DC 20005
United States202-835-0185http://www.silverinstitute.org The World Jewellery Confederation
Italycontact@cibjo.orghttp://www.cibjo.org The World Jewellery Confederation (CIBJO)
Viale Berengario, 19
Italy3933-5779 0968cibjo@cibjo.orghttp://www.cibjo.org Woman's Jewelry Association
82 Washington Street, Suite 203A Poughkeepsie, NY
United States212-687-2722646-355-0219info@womensjewelryassociation.comhttps://www.womensjewelryassociation.com/ World Gold Council
55 Old Broad Street, London EC2M 1RX
United Kingdom207-826-4700207-826-4799http://www.gold.org