| Color First | 103 | Colored Gemstones |
| Columbia Gem House | 1117, 3319 | Gemstones |
| Downeast Trading Company | 3204 | |
| Gem Art Center / Helen Serras-Herman | 3009 | Gem Art |
| Hopkins Opal | 1506 | Opals |
| King's Ransom | 1010 | |
| Krishaili Gems | 1503 | Gemstones |
| Out of Our Mines | 1123 | |
| Rare Earth Mining | 222 | Gemstones & Minerals |
| Robert Shapiro | 429 | Opals |
| Taj Company / Meraki Gemstones | 1322 | Gemstones |
| United Precious Metal Refining | 1702 | Precious Metal Refining |
| 100% Natural | 210 | Natural Gemstones |
| 3090 Gems | 1328 | Gemstones |
| 4 G's Trading Corporation | 903 | |
| A & A Jewelry Supply | 1701 | Jewelry Supplies |
| A B C Gems | 1301 | Gemstones |
| A I Jewels | 302 | Jewelry |
| A. Kleiman & Company | 622 | |
| Aaron Faber Gallery | 3310 | Jewelry / Gallery |
| Aaron Henry Designs | 3215 | Jewelry Designs |
| Accredited Gemologists Association | 27 | Organization |
| Adasco Designs | 919 | Jewelry Designs |
| AG Gems & Jewelry | 602 | Gems & Jewelry |
| AIGS Lab | 18 | Gemological Laboratory |
| Aira Jewels | 3026 | Jewelry |
| Akiva Gil Company | 716 | |
| Alex Sepkus | 3216 | Jewelry |
| Alishan | 3317 | Jewelry |
| Allerton Cushman & Company | 906 | |
| Almor Designs/Heskia Brothers | 516 | Jewelry Designs |
| Amba Gem Corporation | 1208 | Gemstones |
| American Gem Corporation | 3113 | Gemstones |
| American Gem Society | 22 | Organization |
| American Gem Trade Association | AGTA | Organization |
| American Gemological Laboratories | Agate | Gemological Laboratory |
| American Pearl Company | 802 | Pearls |
| American Society Of Appraisers | 13 | Organization |
| ARA 24K Collection | 3116 | Jewelry |
| Arise Precious Gems | 1217 | Precious Gems |
| Arizona Color Stones & Minerals | 1403 | Colored Stones & Minerals |
| Arnoldi International eK | 609 | |
| Artrade | 110 | |
| ASBA USA | 523 | |
| Asian Gem Centre | 1011 | Gemstones |
| Aster Jewels | 1220 | Jewelry |
| Atlantic Gem Corporation | 816 | Gemstones |
| Authentic Gem Imports (AGI) | 309 | Gemstones |
| Avery Stephen M | 201 | |
| Azurz | 101 | |
| B&B Fine Gems | 501 | Fine Gemstones |
| Barbara Heinrich Studio | 3104 | Jewelry Studio |
| Barker & Company | 500 | |
| Bellagem | 626 | Gemstones |
| Bernard Nacht & Company/Under the Crown | 3119 | Jewelry |
| Bernie's Gems | 901 | Gemstones |
| BF Jewelers | 218 | Jewelry |
| Blue Gems & Beads | 1620 | Gems & Beads |
| Blue Moon Enterprises | 211 | |
| Boston Gems | 917 | Gemstones |
| Box Brokers Group / File-A-Gem | 1719 | Packaging & Displays |
| Brazilian Gem Center | 1618 | Gemstones |
| Brenda Smith Jewelry | 3106 | Jewelry |
| BRG Gems Company | 1722 | Gemstones |
| Bridges Tsavorite | 1022 | Tsavorite Gemstones |
| Brilliant Colors | 508 | Gemstones |
| BTC Gems | 1610 | Gemstones |
| California Collection | 3229 | |
| Canadian Gemmological Association | 17 | Organization |
| Choice Gems Company | 409 | Gemstones |
| Clam Shell | 207 | |
| Color Source Gems | 1024 | Gemstones |
| Colorline | 922 | |
| Commercial Mineral Company | 1300 | Minerals |
| Crafety | 3326 | |
| Crown Color US | 723 | Gemstones |
| Custom Faceting | 316 | Gemstone Cutting |
| Cutter’s Bench | 122 | Gemstone Cutting |
| Cynthia Renee | 19 | Jewelry |
| D Elian Corporation | 422 | |
| Dallas Prince Designs | 3000 | Jewelry Designs |
| D'Amadeo | 120 | |
| Denny Wong Designs | 3124 | Jewelry Designs |
| Desert Sun Mining & Gem Company | 407 | Gemstones & Mining |
| DiamondsNColors | 3320 | Diamonds & Colored Stones |
| DILAMANI | 100 | Jewelry |
| Dorian & Rose | 3121 | Jewelry |
| Dudley Blauwet Gems | 123 | Gemstones |
| Dufty & Company | 400 | |
| Durston Tools | 1725 | Jewelry Tools |
| Elias & Sons Gem Company | 700 | Gemstones |
| Eliko Pearl Company | 1306 | Pearls |
| EMCO Gem | 1605 | Gemstones |
| Equatorian Imports | 810 | Gemstones |
| Eshed Diam | 1325 | Diamonds |
| Esmeralda Gems | 1507 | Emeralds / Gemstones |
| Ethical Metalsmiths | 10 | Organization |
| Evan Caplan | 910 | Gemstones |
| Evergreen Gem Corporation | 1629 | Gemstones |
| Faerber New York | 3307 | Jewelry |
| Fancy Creations | 3205 | Jewelry |
| Fancy Diam | 3114 | Diamonds |
| Fine Emeralds dba FEI | 319 | Emeralds |
| Fine Gems (NY) | 1516 | Gemstones |
| First Class Insurance | 33 | Insurance |
| Fitzgerald Imports | 702 | |
| Forever Creations USA | 1404 | Jewelry |
| GAD Enterprises | 707 | |
| Gem & Jewelry Institute of Thailand | 14 | Organization / Laboratory |
| Gem 2000 | 911 | Gemstones |
| Gem-A USA | 29 | Education / Organization |
| Gemist | 7 | |
| GemLightbox | 1960 | Photography Equipment |
| Gemological Appraisal Laboratory of America | 21 | Gemological laboratory |
| Gemological Institute of America | GIA | Organization / Laboratory |
| Gemological Research Industries | 54 | Gemological Services |
| Gemworld International | 28 | Information / Pricing Services |
| Gerardu Gems & Jewelry | 1408 | Gems & Jewelry |
| GIA Instruments | 1715 | Gemological Instruments |
| GIA Show Service Laboratory | Onyx | Gemological Laboratory |
| Glenn Preus | 203 | |
| Goldstein Diamonds | 3110 | Diamonds |
| Great Diam | 3305 | Diamonds |
| Green Creations | 525 | Jewelry |
| Gubelin Gem Lab | WSMO | Gemological Laboratory |
| Guild Laboratories | 800 | Gemological Laboratory |
| Hajibai Color Gems Corporation | 1612 | Colored Gemstones |
| Hajibay & Company | 817 | |
| Hakimi A & Sons | 1001 | |
| Heritage Gems | 1418 | Gemstones |
| House of Colors | 111 | Gemstones |
| Ijadi Gem | 701 | Gemstones |
| Incon Gems | 1201 | Gemstones |
| Independent Jewelers Organization (IJO) | 10 | Organization |
| Indian Diamond & Colorstone Association (IDCA) | 20 | Organization |
| Indojewels | 116 | Jewelry |
| Informa Markets / JNA | 15 | Media / Trade Shows |
| Inner Circle Gem | 811 | Gemstones |
| Instappraise | 1717 | Software / Appraisal |
| Intercolor USA | 507 | Gemstones |
| International Gemological Institute | 12 | Gemological Laboratory |
| Isaac Gem International Corporation | 710 | Gemstones |
| Ivey Gemstones | 729 | Gemstones |
| Jack Abraham - The Precious Collection | 916 | Fine Gemstones |
| Jacob Levian | 806 | |
| Jaipur Trading Company | 1521 | Gemstones |
| Jairaj Gems | 1221 | Gemstones |
| Jardin Jewels by Beacab | 3004 | Jewelry |
| JCK Magazine | 16 | Media / Magazine |
| Jeffrey Bilgore | 1111 | Gemstones & Jewelry |
| Jerry Blickman | 3207 | |
| Jerry Gil & Company | 819 | |
| Jewel Beetle | 31 | |
| Jewelerette & Company | 3314 | Jewelry |
| Jeweler's Choice | 3213 | |
| Jewelers for Children | 34 | Charity |
| Jewelers Mutual Group | 25 | Insurance |
| Jewelers Vigilance Committee | 55 | Organization |
| Jewels of Mewar | 3304 | Jewelry |
| Joel Price Opals | 1417 | Opals |
| John Buechner | 301 | |
| John J Bradshaw | 1401 | |
| John M Bachman | 206 | |
| John T Haynes | 3200 | |
| JOPA by A&D Gem Corporation | 617 | Gemstones |
| Joseph Dardashti | 3115 | |
| Joseph Gad | 428 | Emeralds |
| JVR Company dba China Stone Company | 217 | Gemstones |
| Jye's International | 1101 | Jewelry |
| Kabana | 3221 | Jewelry |
| Kanchan Impex | 623 | |
| Kassoy | 1714 | Jewelry Tools & Supplies |
| Kho International | 522 | |
| Kimberly Collins Colored Gems | 1106 | Colored Gemstones |
| Knupfer International Gems | 1027 | Gemstones |
| Kostbar International | 323 | |
| Krainz Creations | 1900 | Jewelry |
| L J West Diamonds | 3220 | Diamonds |
| Lavish Jewelry Cleaner | 1706 | Jewelry Care Products |
| Lee Collins Gems | 300 | Gemstones |
| Lika Behar Collection | 3227 | Jewelry |
| Lithos Minerals | 1 | Minerals |
| Lockshank | 1710 | Jewelry Components |
| Lothar Haag America | 1019 | |
| Lucoral & Lupearl Group /New York Jewelry Mart Corporation | 117 | Pearls & Jewelry |
| M S International | 1307 | |
| Madagascar Imports | 318 | Gemstones |
| Magilabs USA | 53 | Gemological Laboratory |
| Maharaja Jewels | 3010 | Jewelry |
| Malachite & Gems of Africa | 1511 | Malachite & Gemstones |
| Malhotra | 1007 | |
| Manak Jewels | 801 | Jewelry |
| Manufacturing Jewelers & Suppliers of America (MJSA) | 1721 | Organization |
| Marcel Roelofs | 3019 | Jewelry |
| Martha Seely Design | 3217 | Jewelry Design |
| Mason-Kay Jade | 1200 | Jade |
| Master Casting & CAD | 450, 1711 | Jewelry Casting / CAD |
| Mastoloni Pearls | 517 | Pearls |
| Mayer & Watt | 706 | Gemstones |
| Mellika Company / Crevoshay | 3105 | Jewelry |
| Michael Couch & Associates | 228 | Gemstones |
| Michael GAD Emerald | 1227 | Emeralds |
| Michael John Jewelry | 3101 | Jewelry |
| Michael Schofield & Company | 1017 | |
| Misfit Diamonds | 1611 | Diamonds |
| Mittal Brothers | 1423 | |
| Nar Wong dba Tivoli Jewelry | 3118 | Jewelry |
| National Association of Jewelry Appraisers | 11 | Organization |
| Nature's Geometry | 223 | |
| Neil Gems Corporation | 1017 | Gemstones |
| NI Gem Corporation | 1002 | Gemstones |
| Noelle Habib | 907 | |
| North American Gem Carvers | 1025 | Gem Carving |
| NRI Gems | 923 | Gemstones |
| Oberon & Caswell | 310 | |
| Obsessed Over Gems | 327 | Gemstones |
| Omi Gems | 401 | Gemstones |
| Oriental Arts Company | 726 | Arts & Jewelry |
| Original Gems | 717 | Gemstones |
| P H Gems International | 506 | Gemstones |
| P Intercontinental | 927 | |
| Pala International | 1016 | Gemstones & Minerals |
| Parle Jewelry Designs / Idaho Opal & Gem Company (IOGC) | 417 | Jewelry & Opals |
| Penn Gem International | 1023 | Gemstones |
| PeriodJewels | 3018 | Jewelry |
| Petra Class | 3214 | Jewelry |
| Pioneer Gems | 807 | Gemstones |
| Poli Trading Company | 114 | |
| Potentate Mining | 1426 | Mining / Gemstones |
| Precious Colors | 1124 | Gemstones |
| Precious Pebbles | 1604 | Gemstones |
| Premier Color Source | 608 | Gemstones |
| Price Forbes | 51 | |
| Prijems | 1107 | Gemstones |
| Prima Gems USA | 822 | Gemstones |
| Prisma | 1415 | |
| Prompt Gem Importer | 1218 | Gemstones |
| ProVockative Gems | 411 | Gemstones |
| Quality Diajewels | 1422 | Jewelry |
| Quantum Leap | 30 | |
| Rahmanim's Imports | 3021 | |
| Raja Jewels | 823 | Jewelry |
| Rapaport Corporation | 32, 1228 | Diamond Services / Pricing |
| Rare Gem | 1006 | Gemstones |
| RareSource | 406 | Gemstones |
| Rawat Gems | 1122 | Gemstones |
| Real Gems | 1116 | Gemstones |
| Reko Enterprises | 3219 | |
| RMC Gems | 1321 | Gemstones |
| Robert Bentley Company | 322 | |
| Rod Griffin Boulder Opals | 600 | Boulder Opals |
| Royal Gems | 1625 | Gemstones |
| Royal India USA / RIU Jewels | 1317 | Jewelry |
| Samuel Sylvio Designs | 528 | Jewelry Designs |
| Sara Gem Corporation | 606 | Gemstones |
| Sarosi by Timeless Gems | 109 | Gemstones |
| Scott Spurling | 1206 | |
| Semi Gems | 303 | Gemstones |
| Shanu G | 601 | |
| Shaun Gems International | 307 | Gemstones |
| Shivam Imports | 1407 | |
| SMB Network Solutions | 36 | IT Solutions |
| Smithsonian Institution | 1800 | Organization / Museum |
| Soham Diamonds / SNJ Creations | 3311 | Diamonds & Jewelry |
| Sophia by Design | 3005 | Jewelry Design |
| Sparkles & Colors USA / Lakhi Gems Group | 722 | Gemstones |
| SPB Gems / SPB Creations | 713 | Gemstones |
| SSEF (Swiss Gemmological Institute) | SSEF - Lab Space | Gemological Laboratory |
| St John & Myers | 3120 | Jewelry |
| Star Colors | 825 | Gemstones |
| Star Creations | 1515 | Jewelry |
| Stargems | 450-454 | Gemstones |
| Suncrystal Mining | 302 | Mining / Crystals |
| Surya Insurance Services | 26 | Insurance |
| Suzy Landa Jewelry | 3111 | Jewelry |
| Swissdiam New York | 3212 | Diamonds |
| Tara & Sons | 221 | Pearls & Jewelry |
| TBK Jewelry | 3104 | Jewelry |
| Temple Trading Company | 1000 | |
| Tim Roark | 1309 | |
| TopGrade Turquoise | 3003 | Turquoise |
| Trillion Emerald | 1127 | Emeralds |
| Trozzo | 306 | |
| True Blue Opals & Gems | 1125 | Opals & Gems |
| United Color Gems | 1400 | Colored Gemstones |
| Vama Creation | 3025 | Jewelry |
| Varshana Dholakia | 1100 | |
| VCE Gem | 1510 | Gemstones |
| Vettri Gems USA | 124 | Gemstones |
| Vinod Kotahwala | 900 | |
| Viva Jewels | 3322 | Jewelry |
| Washington Jade | 1424 | Jade |
| White Cloud Company | 1207 | |
| Windsor Jewelers | 3121 | Jewelry |
| Wobito Gems | 1619 | Gemstones |
| Wolfgang Vaatz | 3315 | Jewelry / Art |
| YCH Inc | 1316 | |
| Yehuda | 1700 | Diamond Treatment / Testing |
| Yen's Jewelry & Accessories | 1500 | Jewelry |
| Zaffiro | 3321 | |
| ZDNY & Company | 3210 | |
