- Kandy Gems
- Address:D.S.Senanayaka Street
- Ranatunga Gems
- Address:
- Nature's Gem Lanka Co
- Address:Maharagama Rd.
- Miad Engineering (Pvt) Ltd
- Address:Sri Lanka
- Global Institute
- Address:temple rd wijeriya Ratnapura 70000 Sri Lanka
- nisham gems
- Address:no 17a moors road colombo 6
- Gemsmart International (Pvt.) Ltd
- Address:10, Wijeyamangalarama Road, Kohuwala
- Sithy Gems Lapidary
- Address:246/3 Matale Road Akurana Kandy none Sri Lanka
- SUPERIOR CEYLON GEMS
- Address:Maladeniya Road, Elapiliyawa
- CABACHONS & FACETS
- Address:HULUDAGODA ROAD, COLOMBO, Other, Sri Lanka
- Dimuthu gems
- Address:Near the police station kiriella
- Rocky Watches
- Address:Colombo 01, Colombo, Western Province, Sri Lanka
- Richardson & Co. (Ceylon) Ltd
- Address:279, 2nd Floor Galle Road
- iisland gems
- Address:39 / 1 gregorys road colombo 07
- Viking Gems
- Address:126/5/10B-2, YMBA Building Colombo 01 Western 01 Sri Lanka
- Blue Diamonds Jewellery Worldwide PLC
- Address:no.49, Ring Road, Phase 01, IPZ, Katunayake Western 0094 Sri Lanka
- Jewel Castle
- Address:19 / 1 Jeelani Road
- Ruhunage
- Address:Baddegama rd
- Princess Diamonds Limited
- Address:No.45/1, Upul Mawatha, Vilgoda Rd,, Kurunegala, North Western Province, Sri Lanka
- Gamini Gems
- Address:No: 312/5, Hudson Road, Waratenne, Halloluwa, Kandy, Central, Sri Lanka