_id	Organization name	Address	Country	Telephone	Fax	Email	Website
1	Adamas Gemological Laboratory of Indonesia	Apartemen Istana Harmoni Lt.1/Unit 2-S, Komplek Harmoni Plaza, Jl. Suryopranoto, Jakarta Pusat	Indonesia	021-630-5546-47	021-630-5546	paramita_institute@agl-igp.com	http://www.agl-igp.com
2	AGT Gem Laboratory gdfsgdsfg	Okachimachi CY Bldg., 2nd Floor, 5-14-14 Ueno, Taito-Ku	Japan	81-3-3834-6586	81-3-3834-6589	info@agt.jp	http://www.agt.jp
3	AJESP	Av. Paulista, 688 - 17? andar (Edif?cio Santa Filippa) Bela Vista, S?o Paulo/SP	Brazil	55-11-3016-5850	55-11-3284-0459	relacionamento@ajesp.com.br	http://www.ajesp.com.br/
4	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	India	91 22 67382727	91 - 22 - 67382706	secretary@gjc.org.in	http://www.gjc.org.in
5	American Gem Society	8881 W. Sahara Ave. Las Vegas, NV	United States	866-805-6500	""	info@ags.org	https://www.americangemsociety.org/
6	American Gem Trade Association	3030 LBJ Freeway, Suite 840, Dallas, Texas	United States	214-742-4367	214-742-7334	info@agta.org	http://www.agta.org
7	American Gemological Laboratories, Inc.	580 Fifth Avenue, Suite 706	United States	212-704-0727	212-764-7614	""	http://www.aglgemlab.com/
8	American Institute of Diamond Cutting Inc.	1287 E. Newport Center Drive #202Deerfield Beach, Florida	United States	954-574-0833	""	diamondcutting@att.net	http://www.diamondschool.com/
9	American Jewelry Institute LLC	315 West Ponce de Leon AvenueSuite 921Decatur, GA	United States	404-271-3278	678-623-3301	info@ajigroup.org	http://www.ajigroup.org/
10	American Society of Appraisers	11107 Sunset Hills Rd, Suite 310 Reston, VA	United States	703-478-2228	703-742-8471	asainfo@appraisers.org	http://www.appraisers.org
11	Asian Gemmological Institute & Laboratory Ltd.	707-8, 7 / F, Hang Seng Tsimshatsui Building, 18 Carnarvon Road, Tsimshatsui, Kowloon	Hong Kong	852-2723-0429	852-2367-5201	agil@agil.com.hk	http://www.agil.com.hk/en/index.php
12	Asian Institute of Gemmological Sciences	919/1 Silom Road, Jewelry Trade Center, South Tower, 11th Floor, Bangrak	Thailand	66-2-267-4315	66-2-267-4329	registrar@aigsthailand.com	https://www.aigsthailand.com/
13	Assay Office Birmingham	AnchorCert Group 1 Moreton Street Birmingham B1 3AX	United Kingdom	447-775 807 554	""	marie.brennan@theassayoffice.co.uk	http://www.theassayoffice.co.uk
14	Association of Jewellers and Watchmakers of the Czech Republic	Kozi ul. 4 110 00 Praha 1	Czech Republic	+420 244 464 906	""	ludekhubrt@centrum.cz	http://www.skhcr.cz
15	Brazilian Institute of Gems and Precious Metals	SHN, Qd. 1, Bloco D – Ed. Fusion Work & Live Sala 1.207 – Asa Norte	Brazil	61-326-3926	""	""	http://www.ibgm.com.br
16	California Institute of Jewelry Training	PO Box 1973 Fair Oaks,	United States	916-967-2211	""	info@jewelrytraining.com	http://www.jewelrytraining.com
17	Canadian Gemmological Association	55 Queen St East, Lower Concourse #105Toronto, ON M5C 1R6	Canada	1-647-466-2436	""	info@canadiangemmological.com	http://www.canadiangemmological.com
18	Canadian Institute of Gemmology	P.O. Box 57010Vancouver, B.C.V5K 5G6	Canada	604-530-8569	""	""	http://www.cigem.ca
19	Canadian Jewellers Association	27 Queen Street East, Suite 600, Toronto	Canada	416-368-7616	416-368-1986	info@canadianjewellers.com	https://www.canadianjewellers.com/
20	CDTEC GEMLAB	Calle 12 b # 6-82 piso 11	Colombia	57-1 243 8871 - 746 7490	""	direccion@gemlabcdtec.com	http://www.gemlabcdtec.com/home/en
21	Central Gem Laboratory	Miyagi Bldg., 5-15-14 Ueno, Taito-ku	Japan	81-3-3836-1627	81-3-3832-6861	""	http://www.cgl.co.jp/english/
22	Centro Informazione e Servizi Gemmologici (CISGEM)	Via Vittor Pisani, 12 20124 Milano Italia	Italy	39-02-366-85000	""	info@cisgem.com	https://www.cisgem.com/
23	Chanthaburi Gem and Jewelry Traders Association	1/59 Maharaj Rd., Tambon Tarad, Amphoe Muang, Chanthaburi	Thailand	039-303-118-9	66 39 303100	cga.chan2545@gmail.com	https://www.web.facebook.com/chanthaburiCGA/?_rdc=1&_rdr
24	China Gems Laboratory Ltd. (CGL)	12/F, Luk Fook Jewellery Centre, No. 239 Temple Street, Jordan, Kowloon	Hong Kong	852-2783-2793	852-2770-7185	info@chinagemslab.com	http://www.chinagemslab.com/en/
25	Denmark Retail Jewellers Association	Kongevejen 270 Dk 2830 Virum	Denmark	45-4583-5211	45-4583-0611	info@guldsmed.dk	http://www.guldsmed.dk
26	DFHK - The Diamond Federation of Hong Kong	Suite 5B, Hong Kong Diamond Exchange Building 8-10 Duddell Street, Central, Hong Kong	Hong Kong	852-2524-5081	852-2877-9831	info@dfhk.org	http://www.dfhk.org
27	Diamond Certification Laboratory of Australia (DCLA)	Suite 901, Level 9, Citisite House 155 Castlereagh Street Sydney NSW	Australia	612-9261-2104	612-9261-4263	info@dcla.com.au	http://www.dcla.com.au
28	Diamond Federation of Hong Kong, China Limited	Suite 5B, Hong Kong Diamond Exchange Building, 8-10 Duddell Street, Central, Hong Kong	Hong Kong	852-2524-5081	852-2877-9831	info@dfhk.org	http://www.dfhk.org
29	Diamond Manufacturers and Importers Association of America	P.O. Box 5297 Rockefeller Center Station, New York	United States	212-944-2066	516-482-2749	""	http://www.dmia.net
30	DSEF - German Gem Lab (German Foundation for Gemstone Research)	Prof.- Schlossmacher-Str. 1, D-55743 Idar-Oberstein	Germany	49-6781-50840	49-6781-508419	info@gemcertificate.com	http://www.edelsteinlaboratorien.de/html/index.html
31	E.G.L. South Africa, European Gemological Laboratory	Suite E8, First Floor, The Paragon, 1 Kramer Road, Off Skeen Boulevard, Bedfordview, Johannesburg	South Africa	2711-334-4527	2711-334-2193	admin@egl.co.za	http://www.egl.co.za
32	EGL Antwerp	Diamond Plaza Bldg.Hoveniersstraat 55,2018 Antwerp	Belgium	32-3-233-4654	""	info@eglantwerp.eu	http://www.eglantwerp.eu/
33	EGL France	9 rue Buffault	France	33-1-4016-1635	33-1-4874-2036	egl@iway.be	http://www.expertisediamant.fr/
34	EGL USA Gemological Laboratory	888 EGL USA4	United States	888-345-8724	""	info@eglusa.com	http://www.eglusa.com
35	Elmyr Gemological Services Elmyr Services BVBA	Michel & Elie Sch?nfeld, Hoveniersstraat nr 30, 2018 Antwerp	Belgium	32-233-7547	""	""	http://www.elmyrservices.com
36	EPI Institute Fur Edelstein Prufung	Riesenwaldstr.6 D-77797, Ohlsbach	Germany	49-7803-600808	""	info@epigem.de	http://www.epigem.de
37	European Gemological Laboratory	Laboratories, B?ehov? 202/4, 110 00 Praha 1	Belgium	""	""	""	http://www.egllaboratories.org/
38	European Gemological Laboratory (India) d.b.a. International Gemological Laboratories	520, Parekh Market, 39, Kennedy Bridge, Opera House, Mumbai - 400004	India	91-22-40453888	91-22-23868517	contact@eglindia.biz	http://www.eglindia.com/
39	Far East Gemological Institute	12 Arumugam Road, #04-02 LTC Building B	Singapore	65-6745-8542	65-6745-2562	tay@gem.com.sg	http://www.gem.com.sg
40	Federation of Goldsmiths and Jewellers Associations of Malaysia (FGJAM)	89, 4th floor, Jalan Sultan	Malaysia	603-2078 4892	603-2078 4895	info@fgjam.org.my	http://www.fgjam.org.my
41	Federation Of Nepal Gold & Silver Dealers’ Association	Naxal, Kathmandu, Nepal	Nepal	977 1 4432270	977 11 4432270	info@fenegosida.org	http://www.fenegosida.org
42	Gem and Lapidary Dealers Associaton Inc.	120 Derwood Circle Rockville, MD	United States	301-294-1640	301-294-0034	info@glda.com	http://www.glda.com
43	Gem Certification and Assurance Lab (GCAL)	580 Fifth Avenue, Lower Lobby	United States	212-869-8985	""	info@gemfacts.com	http://www.gemfacts.com
44	Gem Scan International, Inc.	27 Queen Street East, Suite 406, Toronto	Canada	416-868-6656	416-868-6558	info@gslabscanada.com	http://www.gemscan.com/
45	Gem Studies Laboratory (GSL)	Suite 2, Level 5, 301 Pitt Street,Sydney NSW	Australia	612-9264-8788	612-9267-8556	info@gsl.net.au	https://www.gemstudieslaboratory.com.au/
46	Gem Testing Laboratory (GTL)	Rajasthan Chamber Bhawan, 2nd Floor, Mirza Ismail Road, Jaipur	India	91-141-2568221	91-141-2567-921	info@gtljaipur.info	http://www.gtljaipur.info/
47	Gemmological Association & Gem Testing Laboratory of Great Britain (Gem-A)	21 Ely Place London EC1N 6TD	United Kingdom	44-207-404-3334	44-020-7404-8843	information@gem-a.com	https://www.gem-a.com/
48	Gemmological Association of Hong Kong	P.O. Box 97711, Tsim Sha Tsui, Kowloon	Hong Kong	852-2366-6006	852-2780-5920	info@gahk.org	http://www.gahk.org/tc/background.asp
49	Gemmological Association of Australia	Gaa Statutory Office Gemmology House, 24 Wentworth Avenue, Sydney	Australia	61-1300-436-338	""	learn@gem.org.au	http://www.gem.org.au
50	Gemmological Institute of India (GII)	29 Gurukul Chambers, 187-189, Mumbadevi Road, Mumbai	India	91-22-2342-0039, 5651-9030	91-22-2367-9189	gemforum@giionline.com	http://www.giionline.com
51	Gemmologisches Institut Hamburg	Business Center / 6. Stock, Poststrasse 33, 20354 Hamburg	Germany	49-40-352-011	49- 40-343-4 19	""	https://www.gemmologisches-institut-hamburg.de/
52	Gemmologists Association of Sri Lanka	275/75, Stanley Wijesundara Mawatha	Sri Lanka	94 117 202 032	""	info@gemmology.lk	http://www.gemmology.lk
53	Gemological Center (G.C.I.) Ltd	Diamond Exchange, Maccabi Bldg., Suite 1955-1956, 1 Jabotinsky St.	Israel	972-3-751-4782	972-3-613-2651	gci@gci-gem.com	http://www.igc-gem.com
54	Gemological Center of Bahia	Ladeira do Carmo, N ? 37, Santo Antonio (Historic Center), Salvador - Bahia	Brazil	55-71-3326-1747	""	cgb@sicm.ba.gov.br	http://www.cgb.ba.gov.br
55	Gemological Center, Department of Geology, Moscow University	Gemological Center, Department of Geology, Moscow University Main Building, Leninskie Gory, GSP-1, Moscow, Russia	Russian Federation	7-495-958-5947	""	expert@geol.msu.ru	http://www.gem-center.ru/en/
56	Gemological Institute of America	The Robert Mouaward Campus, 5345 Amada Drive, Carlsbad	United States	1-800-421-7250	1-760-603-4080	""	https://www.gia.edu/
57	Gemological Laboratory of the Center for Mineral Technology (CETEM) Ministry of Science & Technology (MCT)	Av.Ip. 900, Ilha da Cidade Universit.ria, CEP	Brazil	55-21-3865-7222	55-21-2260-2837	cetem.info@cetem.gov.br	http://www.cetem.gov.br
58	Gemological Science International	581 Fifth Avenue, 4th Floor	United States	212-207-4140	212-207-4156	info@gemscience.net	http://www.gemscience.net
59	Gemresearch Swiss Laboratory	GRS Gemresearch Swisslab AG Baumschulweg 13 6045 Meggen	Switzerland	41-41-210-3131	41-41-210-3134	swiss@gemresearch.ch	http://www.gemresearch.ch/
60	Gems & Jewelry Trade Association of China	Floor 22, Building C, Global Trade Center 36 North Third Ring Road, Dong Cheng District, Beijing	China	86-10-58276078	86-10-58276078	int@jewellery.org.cn	http://www.jewellery.org.cn/en_2.aspx
61	Gems & Precious Metals Lab., Dubai Central Laboratory Dep.	P.O.Box 67	United Arab Emirates	9714-221-5555	""	info@dm.gov.ae	http://www.vgn.dm.gov.ae
62	Gemtech Lab	4bis route des Jeunes CH-1227 Les Acacias, Gen?ve SUISSE	Switzerland	4122-731-5880	""	info@ggtl-lab.org	http://www.gemtechlab.com
63	General Directorate of Custom - Customs Technical Laboratories	Budejovicka 7, Prague 4	Czech Republic	420 261 331 111	""	podatelna@cs.mfcr.cz	https://www.celnisprava.cz/en/Pages/default.aspx
64	Gold and Jewelry Group Dubai	P.O. Box : 26909,Office 306,Third Floor, Gold Land, Deira, Dubai	United Arab Emirates	00971-4-2291188	""	info@dubaicityofgold.ae	https://www.dubaicityofgold.com/
65	Gold Traders Association	33/124 Wallstreet Tower 24th Floor Surawong rd, Bangruk Bangkok	Thailand	662-020-9000	662-020-9099	contact@goldtraders.or.th	http://www.goldtraders.or.th
66	Guangdong Gems & Jade Exchange	Management Center: 706, East Block, Times Square, 28#, Tianhe Road (North), Guangzhou, Guangdong	China	86 20 39022717	86 20 39022163	GDGJE@gdgje.com	http://www.en.gdgje.com/
67	Gubelin Gemmological Laboratory	Maihofstrasse 102 6006 Lucerne	Switzerland	4141-417-0011	""	gubelin.luzern@gubelin.com	http://www.gubelin.com/en/gemmology/gemlab
68	Guild of Philippine Jewellers	45/3F A Visayas Ave. Brgy Vasra, Quezon City	Philippines	624 - 68 - 26	""	info@gpji.org	http://www.gpji.org
69	Harold Weinstein Laboratory	55 Queen Street East, Suite 1301, Toronto	Canada	416-366-6518	416-366-6519	""	http://www.hwgem.com
70	HKD Diamond Laboratories Canada	127, Panchratna, Opera House, Mumbai	India	91-022-2368-3336	91-022-2368-3337	infoindia@hkdlab.com	http://www.hkdlab.com
71	Hong Kong Gems Laboratory	248 Des Voeux Rd,Tung Hip Comm.	Hong Kong	852-2815-1880	852-2854-3970	""	http://www.hkgems.com.hk/
72	Hong Kong Jade & Stone Laboratory Limited	Room 1401-2, Chow Sang Sang Building, 229 Nathan Road., Kowloon	Hong Kong	852-2388-9688	""	hkjsl@netvigator.com	http://www.JadeiteLaboratory.com.hk
73	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 0164	hkjja@hkjja.org	http://www.jja.com.hk
74	Hong Kong Jewelry Manufacturers Association	Unit G, 2/F Kaiser Estate Phase 2 , 51 Man Yue Street , Hunghom , Kowloon , Hong kong	Hong Kong	+852 2766-3002	""	enquiry@jewelry.org.hk	https://www.jewelry.org.hk/en/
75	HRD Antwerp Institute of Gemmology	Hoveniersstraat 22	Belgium	32-3-222-0611	32-3-222-0699	info@hrdantwerp.be	http://www.hrd.be
76	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 Emirates	9714-450-8027	9714-450-8023	dubai@igi.org	http://www.igiworldwide.com
77	I.G.I. Bangkok, Thailand International Gemological Institute	BGI Bldg., 9 Soi Charoen Krung 36, New Road	Thailand	662-630-6726	662-630-6728	thailand@igi.org	http://www.igiworldwide.com
78	I.G.I. Hong Kong International Gemological Institute	Suite 501, Tower 1, The Gateway, Harbour City, 25 Canton Road, Tsim Sha Tsui	Hong Kong	852-2522-9880	852-2522-9887	hk@igiworldwide.com	http://www.igiworldwide.com
79	I.G.I. Los Angeles, USA International Gemological Institute	Suite 1200 550 South Hill Street,Los Angeles	United States	1-213-955-0008	1-213-955-8060	losangeles@igi.org	http://www.igiworldwide.com
80	I.G.I. New York, USA International Gemological Institute	551 Fifth Avenue, 7th floor New York, NY	United States	212-753-7100	212-644-7759	newyork@igi.org	http://www.igiworldwide.com
81	I.G.I. Tel Aviv, Israel International Gemological Institute	Yahalom Building, Room 3178-3182 Tuval 21 52520 Ramat Gan	Israel	972 3 756 4200	972 3 613 7231	israel@igiworldwide.com	http://www.igiworldwide.com
82	I.G.I. Tokyo, Japan International Gemological Institute	UT Bldg., 2-21-13 Higashi Ueno Taito-Ku, Tokyo	Japan	81-3-5807-2958	81-3-5807-2959	japan@igiworldwide.com	http://www.igiworldwide.com
83	IGC International Gemological Laboratory Ltd.	"12 Smolnaya st., Moscow, Russia, 125493 the building of ""Diamond World"""" Office 250 (2028)"""	Russian Federation	095-4522278; 095-4523376	095-4522278; 095-4523376	igclab@mail.ru	https://www.igc-gem.com/
84	IGC Universal Gemological Laboratories	Diamond Exchange, Maccabi Bldg., Suite 1955-1956, 1 Jabotinsky Street	Israel	972-3-751-4782	972-3-613-2651	contact@igc-lab.com	http://www.igc-lab.com/
85	IGI Italian Gemmologico Institute	Piazza San Sepolcro, 1 - Milano, 20123	Italy	39-02-805-049-92	39-02-605-05-765	info@igi.it	https://www.igi.it/en/homepage
86	Independent Gemological Laboratories LLC.	25 W 45th Street, Suite 1406	United States	212-382-0008	""	sales@lglab.com	http://www.dia-lab.com
87	Indian Diamond & Colorstone Association	56 West 45th Street, Suite 705, New York	United States	212-921-4488	212-768-7935	Office@idcany.org	http://www.idcany.org/
88	Indian Diamond Institute	Katargam, GIDC, Sumul Dairy Rd., P.B.no.508, Surat	India	91-261-2407847	91-261-2407849	info@diamondinstitute.net	http://www.diamondinstitute.net
89	Indian Institute of Gemology	Gaffor Colony, Alam Building, 1st Floor, Uditnagar,Rourkela,Odisha	India	91-11-352-0974	""	iig@nda.vsnl.net.in	http://www.indianinstituteofgemology.com/
90	Industrial Diamond Association of America	P.O. Box 29460 Columbus, OH	United States	614-797-2265	614-797-2264	tkane-ida@insight.rr.com	http://www.superabrasives.org/superabrasives/
91	Institut de gemmologie de Madagascar (IGM)	Route d''Andraisoro Ampandrianomby	Madagascar	261 (0)20 22 591 37	""	igm@igm.mg	http://www.igm.mg/
92	Institut National de Gemmologie Paris & Lyon	33, Rue La Boetie, Paris	France	33-104-770-2383	""	contact.paris@ingemmologie.com	https://www.ingemmologie.com/
93	Instituto Gemologico Espanol	C/ Alenza, 1 ? 28003 Madrid, Espa?a	Spain	(+34) 914 414 300	""	info@ige.org	http://www.ige.org
94	International Colored Gemstone Association	31 West 47th St., Suite 1103, New York, NY	United States	1 (212) 620-0900	""	ica@gemstone.org	http://www.gemstone.org
95	International Gemological Institute (IGI) - Mumbai	702, The Capital, Bandra Kurla Complex, Bandra (E), Mumbai 400 051	India	91 22 4035 2550	91-22-2364-2861	india@igiworldwide.com	http://www.igiworldwide.com
96	International Gemological Laboratories (IGL)	601 Marsh Road N.E., Calgary, Alberta	Canada	1-403-264-8526	1-403-264-8527	info@intergemlabs.com	http://www.intergemlabs.com
97	Intternational Gemmological Institute (IGI)	Schupstraat 1	Belgium	32-3-401-0888	32-3-232-0758	europe@igiworldwide.com	http://www.igiworldwide.com
98	Israel Jewelers Association	22 Nahar Hayarden st. Modi'in	Israel	+972-54-6797777	""	info@ijma.org.il	http://www.ijma.org.il
99	Istanbul Chamber of Jewelry	Piyerloti Cad. Dostlukyurdu Sok. No:3 Cemberlitas	Turkey	0-212-516-2757	0-212-516-1278	info@iko.org.tr	http://www.iko.org.tr/
100	Japan Jewellery Association	2-23-25, Higashiueno, Taito-ku, Tokyo	Japan	+81-3-3835-8567	+81-3-3839-6599	info@jja.ne.jp	http://www.jja.ne.jp
101	Japan Pearl Exporters' Association	Japan Pearl Center 122, Higashi-machi, Chuo-ku	Japan	+81-78-331-4031	+81-078-331-4345	jpeakobe@lime.ocn.ne.jp	http://www.japan-pearl.com
102	Jewel Fest Club	Jewelry Trade Center, 52nd Floor, 919/616 Silom Rd., Bangrak	Thailand	662-630-1390-7	""	jfc.pornpen21@gmail.com	https://www.facebook.com/Jewel-Fest-Club-261626790871767/
103	Jewelers of America	120 Broadway, Suite 2820 New York, NY	United States	(800) 223-0673	""	members@jewelers.org	http://www.jewelers.org
104	Jewellers Association of Australia	Level 35, One International Tower, 100 Barangaroo Avenue, Sydney NSW	Australia	612-8046-6878	""	info@jaa.com.au	https://www.jaa.com.au/contact
105	Jewellers Vigilance Canada	27 Queen Street East , Suit 600, Toronto	Canada	416-368-4840	416-368-5552	info@jewellersvigilance.ca	http://www.jewellersvigilance.ca
106	Jewellery Distributors' Association of the United Kingdom	Federation House, 10 Vyse Street, Birmingham, B 18 4BR	United Kingdom	44-0-121-236-2657	44-0-121-236-3921	secretariat@jda.org.uk	http://www.jda.org.uk
107	Korea Federation of Jewelry Manufacturers Association	4F 503, Joonang B/D, 72 Dongwhamun-ro, Jongno-gu, Seoul, Republic of KOREA	Korea, Republic of	""	""	""	""
108	La Societe de Gemmologie du Quebec Inc.	CENTRE DE GEMMOLOGIE DU QU?BEC 1100 Cremazie East Boulevard Montreal (Qu?bec) H2P 2X2	Canada	1-514-273-5233	""	info@gemmologie.ca	https://www.gemmologie.ca/EN/
109	Laboratoire Franais de Gemmologie	30, rue Notre-Dame des Victoires - 75002 Paris	France	33-1-4026-2545	""	contact@lfg.paris	https://www.laboratoire-francais-gemmologie.fr/
110	Labtrade Gemological Laboratory	4590 N Rancho Dr #1, Las Vegas	United States	702-220-5500	702-220-5592	sales@lglab.com	http://www.lglab.com
111	Lao Gems&Jewelry Trader Association	P.O. Box 9231 Villa LuBeDu Saphanthong Tai Village Vientiane, Laos	Lao Republic	+856 20 77 125 000	""	info@jclao.com	https://www.jclao.com/
112	Mandalay Gem Association Trading Co., Ltd	91(A), 77th St, Bet: 26thx27th, Mandalay	Myanmar	95-231248	""	""	""
113	Meycauayan Jewelry Industry Association	Philippine Jewelry Center, Provincial Sports Complex, Pandayan, Meycauayan, Bulacan	Philippines	(+63) 44 228-2840	""	mjia85@yahoo.com.ph	https://www.meycauayanjewellers.com
114	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	Canada	1-604-822-1289	1-604-822-6088	groat@mail.ubc.ca	http://www.eos.ubc.ca/personal/groat
115	Mineralogy & Gem Testing Laboratory, Directorate of Mining & Geology, Gov. of Kerala	Directorate of Mining & Geology, Kesavadasapuram Pattom Palace P.O.Thiruvanthapuram	India	91-471-2556790, 2447429	91-471-2447429	geo.thi.dmg@kerala.gov.in	http://www.dmg.kerala.gov.in/index.php?option=com_content&view=article&id=82&Itemid=88
116	Myanmar Gems And Jewellery Entrepreneus Association	No.(68),Kabar Aye Pagoda Road,Mayangon,Yangon.	Myanmar	959-426219597	""	info@mgjea.org	http://www.mgjea.org/
117	National Gem & Jewellery Authority (NGJA)	25, Galle Face Terrace	Sri Lanka	94-11-239-0645/8	94-11-239-0649	info@ngja.gov.lk	http://www.ngja.gov.lk/en/
118	National Gemstone Testing Centre (NGTC)	22F Tower C, Global Trade Center, 36# North ThirdRing East Road, Beijing 100013, P.R.China	China	86-010-58276000	86-010-58276000	""	http://www.ngtc.com.cn/index.php?l=en
119	Nepal Gem and Jewellery Association : NEGJA	4th Floor, Kesha Plaza, New Road, Kathmandu, Nepal	Nepal	977-1-4220210	977-1-4252181	nepalgja@mos.com.np	http://www.negja.org.np
120	Netherlands Gemmological Laboratory	Darwinweg 2, 2333 CR Leiden	Netherlands	31-71-568-7596	31-71-568-7666	nel@naturalis.nl	https://www.naturalis.nl/en/about-us
121	Odile Civitello, gemmologue et evaluateur enr.	620 Cathcart Street Suite 317 Montreal, Quebec	Canada	1-514-813-8194	""	info@odilecivitello.com	http://www.odilecivitello.com/en/
122	Philippine Association of Pearl Producers/Exporters	45 Don Vicente Madrigal Avenue, Corinthian Gardens, Quezon City ,	Philippines	+63-(632)810-0572	""	""	""
123	Professional Gem Sciences Laboratory, Ltd.	5 South Wabash Avenue, Suite 315 Chicago, IL 60603	United States	312-920-1541	""	myriam.pgslab@yahoo.com	https://www.pgslaboratory.com/
124	Quebec Jewellers Corporation	868, rue Brissette,Sainte-Julie, J3E 2B1	Canada	514-485-3333	514 420 2828	lisepetitpas@cbq.qc.ca	""
125	RAG Ricerche Analisi Gemmologiche	corso San Maurizio, 52 Torino	Italy	39-011-887166	39-011-8128715	info@raglabgem.com	http://www.raglabgem.com
126	Saigon Jewelry Association	586 Tran Hung Dao Street, Ward 14, District 5	Vietnam	(84-8) 38591103; 39751486	""	info@hoikimhoansaigon.org	http://www.hoikimhoansaigon.org
127	Shanghai Gems & Jade Exchange	25F, Lansheng Building, 8 Milddle Huaihai Road, Huangpu District, Shanghai	China	+86-21- 6319 1818	""	info@e-ciie.com	""
128	Sincere Overseas Jewelry Ltd. (Laboratory)	B2 1/f, Winner Building, 36 Man Yue Street, Hung Hom , Kowloon	Hong Kong	852-2891-3136	852-2311-3808	info@jewelryappraisal.com.hk	http://www.jewelryappraisal.com.hk/
129	Singapore Jewellers Association	No38-d, North Cannal Rd.	Singapore	065 -533-4053	065-533-0867	info@sia.org.sg	http://www.sja.org.sg
130	SISTEMA AJORIO-Laboratorio Gemologico	Avenida Graca Aranha, 19 Gr.404	Brazil	55-21-2220-8004	""	ajorio@ajorio.com.br	http://www.sistemaajorio.com.br/web/index.php
131	Sistema Sindijoias Ajomig	Rua dos Goitacazes, 375 - sobreloja Centro - Belo Horizonte	Brazil	55-31-3214-3545	""	sindijoiasajomig@fiemg.com.br	http://www.sindijoiasmg.com.br/plus/
132	Spanish Fashion Jewellery Manufactures Association	Mahon Balearic Islands	Spain	+34 971 360 313	""	sebime@sebime.org	http://www.sebime.org
133	Sri Lanka Gem & Jewelry Association	33/2, Melbourne Avenue Colombo 04, Sri Lanka	Sri Lanka	94-11-259-7226	94 11 2 597 250	slgja@facetssrilanka.com	http://www.slgja.org
134	SSEF Swiss Gemmological Institute	Aeschengraben 26, CH-4051 Basel,	Switzerland	41-61-262-0640	41-61-262-0641	""	http://www.ssef.ch
135	Swedis Jeweller's and Goldsmith's Association	Klostergatan 19, S-753 21	Sweden	46-18-132-300	46-18-132-324	info@guldmedsforbundet.se	http://www.guldsmedsforbundet.se
136	Taiwan Jewelry Industry Association	4F, No.609, Linseng N. Road., Taipei, Taiwan	Taiwan	886-2-25862232	886-2-25862301	tjia.since69@msa.hinet.net	http://www.en.taiwanjewelry.org.tw/front/bin/home.phtml
137	Thai Diamond Manufacturers Association	Modern Town Building, 18th Floor, 87/130-140 Soi Ekamai 3, Sukhumvit 63 Rd.	Thailand	662-390-0341	662-381-2780	""	http://www.thaidiamonds.net/
138	Thai Gem and Jewelry Traders Association	52nd Fl., Jewelry Trade Center Bldg., Silom Rd., Bangrak	Thailand	66-2-630-1390-7	66-2-630-1398-9	tgjta@thaigemjewelry.or.th	http://www.thaigemjewelry.or.th/
139	Thai Silver Exporters' ASSOCIATION	30 Surasak Road, Silom Bangrak, Bangkok	Thailand	668-9779-2620	""	info@thaisilver.or.th	http://www.thaisilver.or.th/
140	The Accredited Gemologists Asssociation	3315 Juanita Street, San Diego CA	United States	844-288-4367	""	""	https://www.accreditedgemologists.org/
141	The Bahrain Institute for Pearls & Gemstones	4th floor, East Tower, Bahrain World Trade Centre, Manama	Bahrain	973-172-01333	""	info@danat.bh	https://www.danat.bh/
142	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	India	91 22 26544600	91 - 22 - 26524764	ho@gjepcindia.com	http://www.gjepc.org
143	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	Thailand	66-2-634-4999	66-2-634-4970	jewelry@git.or.th	http://www.git.or.th
144	The Goldsmiths' Company Assay Office	Goldsmiths' Hall, Gutter Lane, London	United Kingdom	020 7606 8971	""	""	https://www.assayofficelondon.co.uk/
145	The Hong Kong Exporters' Association	Rm. 924, Star House, 3 Salisbury Road, Tsimshatsui, Kowloon	Hong Kong	852-2730-9851	852-2730-1869	hkea@exporters.org.hk	http://www.exporters.org.hk
146	The Hong Kong Jewellers' and Goldsmiths' Association	13/F, Hong Kong Jewellery Building 178-180 Queen’s Road Central	Hong Kong	(852)2543 9633	""	enquiry@hkjga.hk	https://www.hkjga.hk/en/
147	The Institute of Gemmology Monaco	Park Palace 6, Impasse de le Fontaine	Monaco	377-9770-8229	""	""	http://www.igm.mc
148	The International Precious Metals Institute	5101 North 12th Avenue, Suite C Pensacola, Florida	United States	850-476-1156	""	mail@ipmi.org	http://www.ipmi.org
149	The Israel Diamond Institute	Derech Ze'ev Jabotinsky 1 , Ramat Gan	Israel	972-543452913	""	support@israelidiamond.co.il	https://www.en.israelidiamond.co.il/
150	The Jewelers Board of Trade	95 Jefferson Boulevard, Warwick	United States	401-467-0055	401-467-6070	jbtinfo@jewelersboard.com	http://www.jewelersboard.com
151	The Jewellers Association Jaipur	Jeweller Association Building, 252, Johari Bazar Rd, Jaipur, Rajasthan 302003	India	+91 141 256 3829	""	info@jajaipur.com	https://www.jajaipur.com/
152	The Jewellery Council of South Africa	The Hamlet, 27 Ridge Road, Parktown, Johannesburg	South Africa	(011) 484 5528	086 504 9512	admin@jewellery.org.za	http://www.jewellery.org.za
153	The Jewelry Insurance Appraisal Institute	137 Muhammad Ali Blvd., Suite 302Louisville KY	United States	510-444-4811	""	dhendry@jcrs.com	http://www.jcrs.com
154	The National Association of Jewellers	10 Vyse Street, Birmingham B18 6Lt	United Kingdom	0121-237-1110	0121-237-1113	info@naj.co.uk	http://www.naj.co.uk/
155	The Retail Jeweler Organization	115 West 4th St North, PO Box 1045, Newton	United States	800-247-1774	""	rjo1966@netins.net	https://www.rjomembers.com/
156	The Silver Institute	The Silver Institute 1400 I Street,NW Suite #550 Washington, DC 20005	United States	202-835-0185	""	""	http://www.silverinstitute.org
157	The World Jewellery Confederation	""	Italy	""	""	contact@cibjo.org	http://www.cibjo.org
158	The World Jewellery Confederation (CIBJO)	Viale Berengario, 19	Italy	3933-5779 0968	""	cibjo@cibjo.org	http://www.cibjo.org
159	Woman's Jewelry Association	82 Washington Street, Suite 203A Poughkeepsie, NY	United States	212-687-2722	646-355-0219	info@womensjewelryassociation.com	https://www.womensjewelryassociation.com/
160	World Gold Council	55 Old Broad Street, London EC2M 1RX	United Kingdom	207-826-4700	207-826-4799	""	http://www.gold.org