We had a seminer at Tokyo Big Sight today tal...

We had a seminer at Tokyo Big Sight today talking about the value of gems. #ruby #myanmar #ginza #kyoto #unheated #yangon #jewelry #gems #gemstone #sothebys #japan #research #ring

Takahito Moriさん(@morisruby)がシェアした投稿 - Jan 27, 2018 at 5:05am PST