- Gem Lanka
- Address:Ethukala, Negambo, Western, Sri Lanka
- Arc Lanka Gem
- Address:658/28, Mahawilla Gardens Colombo 09, Wester
- Viking Gem
- Address:126/5/10B-2, YMBA Building Colombo 01, Wester
- Ranjan Gem
- Address:79a councial avenue Ratnapura, sabaragamu
- Trans gems and jewellery
- Address:197 / b jaya mawatha.
- Nimal Jewellery
- Address:No : 397, Kurunduwatta
- La Maiso
- Address:6, Rosmead Avenue, Colombo 07
- Shaminda
- Address:133/3, Wackwella Road, Minuwangoda
- Sampath Gem Expoter
- Address:No 38 2nd, Floor,Galle Road,Mount-Lavinia. colombo , wester
- Tradewi
- Address:32 A 1/1 Bhathiya Mawatha Dehiwela,
- ranaweera&son
- Address:
- Karandana Gem
- Address:431/1 galle rd mt lavinia mt lavinia, colombo
- Belco Exporter
- Address:31 Ananda Maithree Mw Maharagama, Western Province
- EMBSN International Pvt Ltd
- Address:Sri Lanka
- Artcraft Srilanka
- Address:33A Raymond Road, Nugegoda, Western province
- CADI GEMS
- Address:Sri Lanka
- Tools Europa
- Address:360, Galle Road, Colombo3, Sri Lanka
- Nirmalee Siriwardana
- Address:472 / 2 kanatha mawatha Hokandara road pannipitiya.
- Meeyakawana So
- Address:320, 7 2/1, galle road, colombo-03, WP
- Riash Export
- Address:Jubilee Rd., moratuwa, western, Sri Lanka,30/40 A