bangkok gems & jewelry fair 61 Best&Blue Gems is proud to announce that we will be presented at this year Bangkok Gems & Jewelry Fair 61, Challenger hall 2, Impact Muang Thong Thani from 21 - 25 February 2018 Gem exhibition And the largest jewelry in Asia. Found a gem supplier. Both in and abroad Including a variety of activities within the event. Exhibition booth S65,67 10.00A.M.-18.00P.M. 21-24/02/2018 Impact Muang Thong Thani .