- Nash Creations co., Ltd.
- Address:3531/222, Pattra Villa 2, Chalermnimit soi 5, Bangkhorleam, Bangkhlo
- Nova 1 Diamond Manufacturer
- Address:506 / 1, Charoenrad Rd, T. Naimueng
- Asiagemz LTD
- Address:jomtien road soi 19 avatara complex of 703
- Browndiam
- Address:
- Unita Co., Ltd.
- Address:10/4 Sathon 11 Yak 5 Road, Yannawa, Sathon Bangkok
- Siam Lankaa LTD
- Address:
- jayraj star co., ltd
- Address:
- Sang Diamond Thailand
- Address:
- Fancy Colours Diamonds Co., Ltd
- Address:919 / 447 Jewelry Trade Center, 37 Floor, Silom Road, Silom
- World of Pearls Trading Company...
- Address:
- Aprila Diamond
- Address:233 rama 6 Rd.
- Graceland Gems
- Address:
- Monchai Orawongpaisan
- Address:115 Soi Sangthip Sukumvit 71 Phrakanong
- Manee Diam Co Ltd
- Address:
- ROUGH Eximp
- Address:83 Sathorn Soi 15
- Rryba
- Address:190 Sathorn
- Dignity Holdings
- Address:Bangkholeam
- nucheejewelry
- Address:Bangkok804 Soi 24 thesabannimirth nua Ladyao Chatuchak 10900
- Nova 1 Diamond Manufacturers
- Address:506 / 1, Charoenrad Rd, T. Naimueng
- Happygem. Co. Ltd
- Address:39 / 20 Srichan Road